2 in 1 Foldable Pet Steps Ramp for Small to Large DogsProduct Description: This Back Seat Extender transforms your vehicles backseat into a spacious area, increasing its size by 40%. With a heavy duty board, it offers a larger, more comfortable space for your dog to relax during every journey. The extender ensures your pet can enjoy every ride with plenty of room to stretch out. Built with a sturdy honeycomb board, this extender can support up to 350lbs, providing a durable base for your dog. Its design