Front Back Seat Extender for Dogs, Dog Backseat Extender Hard Bottom Also as Dog Ramp Stairs for Car Bed Sofa or Car Accessories Car Seat Gap Filler for Large Dogs BlackBrand: NOVOLAB Color: black Features: Ultra stable structure: The inner panel of the back seat extender for dogs Is made of soft and highly resilient high quality memory foam, which is strong and lightweight. The solid sponge filling structure shows excellent structural stability. It can effectively resist deformation and pressure, which means it can be suitable for large dogs to rest and sleep on the car seat. And let their paws feel comfortable, it