Highlights - 1.Maximize Your Dog's Comfort - Our back seat extender for dogs expands your backseat by 40%, offering a spacious and comfortable area for your furry friend to stretch out and enjoy every ride in your car, SUV, or truck. 2.Durable Honeycomb Bottom - Featuring a strong honeycomb bottom, this dog back seat extender for car supports up to 350lbs, providing a stable, flat surface that prevents sagging or collapsing, ensuring a safe and secure space for dogs of all sizes. 3.Premium Multi-Layer Protection - Made with 7 layers, including waterproof and scratch-resistant fabric, this dog car seat cover features a non-slip bottom that keeps your dog secure while extending the cover's lifespan. 4.Washable & Waterproof Fabric - The top layer is crafted from 600D Oxford cloth, which is waterproof and scratch-resistant. This dog seat cover for back seat is easily removable and washable, keeping your car clean and your dog happy with minimal effort. 5.Breathable Mesh & Extra Safety - Th