LEHNI Back Seat Extender for Dogs,Hard Bottom Car Seat Cover for Dogs with Mesh Window,Waterproof Backseat Pet Cover Hard Bottom-Dog Car Seat Cover for Back Seat Dog Hammock for Car/SUVBrand: LEHNI Color: BLACK Features: STRONG SUPPORTLEHNI's backseat extender for dogs made of 8 sturdy hard bottom plate,Thickened PP hollow board, more durable than other wood based boards and without any odor that can hold up to 400 pounds,At the same time. The built in hard bottom plate can be removed for easy disassembly and cleaning of the car dog seat cover. LARGE SPACE AND MORE COMFORTABLELEHNI's hard bottom car seat cover for dogs uses a car