urpower back seat extender for large dogs, 550lbs capacity, waterproof, non-slip, hard bottom dog car seat cover for cars and suvs
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Ultimate Back Seat Solution for Large Dogs
The URPOWER Back Seat Extender is a large, hard-bottom dog car seat cover designed to extend your back seat by 45%, providing ample space for your furry friend to stretch and relax. Built to support up to 550 pounds, it's perfect for multiple large dogs. The solid 3-panel structure stays flat and stable, creating a secure and comfortable bed for safer rides.
Featuring a 9-layer construction with high-density foam padding, this dog seat cover provides ultimate comfort and support for long trips. The bottom is enhanced with non-slip silicone grips to protect leather seats and keep the car seat cover firmly in place.
For added protection, the URPOWER Back Seat Extender features 900D wear-resistant oxford fabric that stands up to tough claws, a dual-layer PU + TPU waterproof barrier to lock out mud and spills, and reinforced seams and edge piping to prevent leaks.
- Large Hard Bottom Design - Extends back seat by 45%
- High-Density Foam Padding - Ultimate comfort and support
- Non-Slip Bottom - Protects leather seats and keeps cover in place
- 100% Waterproof - Locks out mud and spills
- Scratch Resistant - 900D wear-resistant oxford fabric
- Heavy-Duty - Supports up to 550 pounds
- Easy Installation - Simple and quick setup
- Machine Washable - Easy cleaning and maintenance
Specifications
| Weight Capacity | 550 pounds |
| Material | 900D oxford fabric |
| Water Resistance | Dual-layer PU + TPU |
| Installation | Easy and quick setup |
Shipping Policy
Last updated: February 12, 2026
At Rayz Mart, we aim to create a seamless and dependable shopping experience for every customer. Transparency, accuracy, and customer confidence are at the core of our shipping process. This Shipping Policy outlines how orders are processed, packaged, shipped, tracked, and delivered. Our goal is that every customer fully understands the complete journey of their order, from the moment it is placed on our website until it reaches their doorstep. This policy is structured to answer every possible question a customer may have regarding delivery timelines, carrier responsibilities, shipping fees, free-shipping eligibility, and situations involving delays or issues during transit.
Estimated Delivery Timeline
Handling Time: 2–3 business days Handling Time refers to the preparation period before your package is transferred to the shipping carrier.
Transit Time: 5–7 days This timeframe applies to most U.S. destinations and may vary due to factors beyond our control, including weather, carrier routing, or local operational delays.
Cut-Off Time Orders placed before 04:00 PM CST are processed on the same business day whenever feasible. Orders placed after 12:00 PM are processed the following business day.
Total Estimated Delivery Window: 7–10 days
This 7–10-day window represents the realistic and transparent timeframe for most U.S. customers.
Shipping Methods & Delivery Carriers
Partnered Carriers
Rayz Mart partners with reputable national and international carriers to ensure safe, timely, and reliable delivery. Our partnered carriers include:
-
UPS
-
USPS
-
FedEx
-
DHL
Each carrier is selected based on package type, destination, speed, and network availability. While customers do not select their preferred carrier, the most optimal option is chosen automatically to ensure timely delivery.
Responsibility Transfer
Once the package is handed to the carrier, the transportation and movement of the shipment fall under the carrier's responsibility. Rayz Mart continues to support customers throughout the transit process, but physical handling and routing are performed by UPS, USPS, FedEx, or DHL.
Shipping Fees & Free Shipping Eligibility
Shipping costs are calculated at checkout based on order value, destination, and selected shipping method.
All applicable shipping charges are displayed clearly before payment is completed. There are no hidden fees, additional handling charges, or unexpected service costs.
Tracking & Order Status Updates
Tracking Number Issuance
Once your package has shipped, a tracking number is emailed automatically. Tracking numbers typically activate within 24 hours and allow you to monitor your order in real-time through the carrier’s tracking system.
Tracking Visibility & Delays
If tracking shows "Label Created" for more than 48 hours, this may indicate a carrier backlog or a delay in initial scanning. Customers may contact our support team for assistance in such cases.
Delivery Notifications
Most carriers provide delivery-day notifications. Customers should ensure their email inbox is accessible and that spam filters do not block our messages.
Address Accuracy & Delivery Issues
Customer Responsibility for Correct Address
Customers must provide a complete and accurate shipping address. Rayz Mart is not responsible for delays, misdeliveries, or lost shipments arising from incorrect or incomplete address information.
Returned or Undeliverable Shipments
If a package is returned due to an incorrect address or multiple failed delivery attempts, customers will be contacted to arrange reshipment. Additional shipping fees may apply in such cases.
Lost, Damaged, or Missing Items
Lost Packages
If tracking indicates “Delivered,” but you have not received your order, we recommend checking secure areas, neighbors, or building management first. If the package still cannot be found, our support team will assist in opening a carrier investigation.
Damaged Packages
Customers must report damaged items within 48 hours of delivery. Photographs of the external packaging, inner protection materials, and the product itself are required for proper evaluation and claim filing.
Missing Items or Partial Deliveries
If an order arrives incomplete, customers should notify us immediately. Our team verifies packaging logs, weight records, and internal dispatch notes to resolve the issue promptly.
Shipping Limitations
United States Only
Rayz Mart currently ships exclusively within the United States. International shipping options are not available at this time. Any future expansion of our shipping coverage will be announced on our website.
Support for Shipping Concerns
Our team is available to assist with delivery questions, tracking issues, or any unclear status updates. Customers may contact us anytime at support@rayzmart.com and we will respond during our business hours.
Business Details
Business Name: Rayz Mart
Business Hours: 08:00 AM to 4:00 PM (Monday to Friday)
Business Number: +1 (512) 543 0339
Business Email: support@rayzmart.com
Business Address: 5900 Balcones Dr, Austin, Texas 78731, United States
Ultimate Back Seat Solution for Large Dogs
The URPOWER Back Seat Extender is a large, hard-bottom dog car seat cover designed to extend your back seat by 45%, providing ample space for your furry friend to stretch and relax. Built to support up to 550 pounds, it's perfect for multiple large dogs. The solid 3-panel structure stays flat and stable, creating a secure and comfortable bed for safer rides.
Featuring a 9-layer construction with high-density foam padding, this dog seat cover provides ultimate comfort and support for long trips. The bottom is enhanced with non-slip silicone grips to protect leather seats and keep the car seat cover firmly in place.
For added protection, the URPOWER Back Seat Extender features 900D wear-resistant oxford fabric that stands up to tough claws, a dual-layer PU + TPU waterproof barrier to lock out mud and spills, and reinforced seams and edge piping to prevent leaks.
- Large Hard Bottom Design - Extends back seat by 45%
- High-Density Foam Padding - Ultimate comfort and support
- Non-Slip Bottom - Protects leather seats and keeps cover in place
- 100% Waterproof - Locks out mud and spills
- Scratch Resistant - 900D wear-resistant oxford fabric
- Heavy-Duty - Supports up to 550 pounds
- Easy Installation - Simple and quick setup
- Machine Washable - Easy cleaning and maintenance
Specifications
| Weight Capacity | 550 pounds |
| Material | 900D oxford fabric |
| Water Resistance | Dual-layer PU + TPU |
| Installation | Easy and quick setup |
Shipping Policy
Last updated: February 12, 2026
At Rayz Mart, we aim to create a seamless and dependable shopping experience for every customer. Transparency, accuracy, and customer confidence are at the core of our shipping process. This Shipping Policy outlines how orders are processed, packaged, shipped, tracked, and delivered. Our goal is that every customer fully understands the complete journey of their order, from the moment it is placed on our website until it reaches their doorstep. This policy is structured to answer every possible question a customer may have regarding delivery timelines, carrier responsibilities, shipping fees, free-shipping eligibility, and situations involving delays or issues during transit.
Estimated Delivery Timeline
Handling Time: 2–3 business days Handling Time refers to the preparation period before your package is transferred to the shipping carrier.
Transit Time: 5–7 days This timeframe applies to most U.S. destinations and may vary due to factors beyond our control, including weather, carrier routing, or local operational delays.
Cut-Off Time Orders placed before 04:00 PM CST are processed on the same business day whenever feasible. Orders placed after 12:00 PM are processed the following business day.
Total Estimated Delivery Window: 7–10 days
This 7–10-day window represents the realistic and transparent timeframe for most U.S. customers.
Shipping Methods & Delivery Carriers
Partnered Carriers
Rayz Mart partners with reputable national and international carriers to ensure safe, timely, and reliable delivery. Our partnered carriers include:
-
UPS
-
USPS
-
FedEx
-
DHL
Each carrier is selected based on package type, destination, speed, and network availability. While customers do not select their preferred carrier, the most optimal option is chosen automatically to ensure timely delivery.
Responsibility Transfer
Once the package is handed to the carrier, the transportation and movement of the shipment fall under the carrier's responsibility. Rayz Mart continues to support customers throughout the transit process, but physical handling and routing are performed by UPS, USPS, FedEx, or DHL.
Shipping Fees & Free Shipping Eligibility
Shipping costs are calculated at checkout based on order value, destination, and selected shipping method.
All applicable shipping charges are displayed clearly before payment is completed. There are no hidden fees, additional handling charges, or unexpected service costs.
Tracking & Order Status Updates
Tracking Number Issuance
Once your package has shipped, a tracking number is emailed automatically. Tracking numbers typically activate within 24 hours and allow you to monitor your order in real-time through the carrier’s tracking system.
Tracking Visibility & Delays
If tracking shows "Label Created" for more than 48 hours, this may indicate a carrier backlog or a delay in initial scanning. Customers may contact our support team for assistance in such cases.
Delivery Notifications
Most carriers provide delivery-day notifications. Customers should ensure their email inbox is accessible and that spam filters do not block our messages.
Address Accuracy & Delivery Issues
Customer Responsibility for Correct Address
Customers must provide a complete and accurate shipping address. Rayz Mart is not responsible for delays, misdeliveries, or lost shipments arising from incorrect or incomplete address information.
Returned or Undeliverable Shipments
If a package is returned due to an incorrect address or multiple failed delivery attempts, customers will be contacted to arrange reshipment. Additional shipping fees may apply in such cases.
Lost, Damaged, or Missing Items
Lost Packages
If tracking indicates “Delivered,” but you have not received your order, we recommend checking secure areas, neighbors, or building management first. If the package still cannot be found, our support team will assist in opening a carrier investigation.
Damaged Packages
Customers must report damaged items within 48 hours of delivery. Photographs of the external packaging, inner protection materials, and the product itself are required for proper evaluation and claim filing.
Missing Items or Partial Deliveries
If an order arrives incomplete, customers should notify us immediately. Our team verifies packaging logs, weight records, and internal dispatch notes to resolve the issue promptly.
Shipping Limitations
United States Only
Rayz Mart currently ships exclusively within the United States. International shipping options are not available at this time. Any future expansion of our shipping coverage will be announced on our website.
Support for Shipping Concerns
Our team is available to assist with delivery questions, tracking issues, or any unclear status updates. Customers may contact us anytime at support@rayzmart.com and we will respond during our business hours.
Business Details
Business Name: Rayz Mart
Business Hours: 08:00 AM to 4:00 PM (Monday to Friday)
Business Number: +1 (512) 543 0339
Business Email: support@rayzmart.com
Business Address: 5900 Balcones Dr, Austin, Texas 78731, United States
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