XUYEDOGLSH Car Backseat Dog Mat, Comfortable Non-Slip Cushion Suitable for Travel Dog Bed and Pet Home Sofa Blanket, Custom Mat for Car Backseat Extender and Seat Cover (Brown 51.2x23.6in)Brand: XUYEDOGLSH Color: Brown Features: Customized Size: The car backseat cushion size is 5123. 6 inches, which fits most car backseat extenders, solving the problem of slippery and hard car seats for dogs, and providing more comfortable space for dogs. Multiple Uses: This cushion is not only used for car backseat extender, but also can be used for passenger or driver travel rest cushion, as well as pet home sofa cushion and pet bed and so on.