MIXJOY Dog Car Seat For Large Medium Dogs, Back Seat Extender for Dogs, Waterproof Dog Carseat, Dog Car Seat Medium Sized Dog, Car Hammock for Dogs-Storage Pocket, Pet Seat Cover for Cars/SUV/Truck(L)[Back Seat Extender+40% Space for Dogs]: The MIXJOY dog car seat extends 40% space in the back seat. Large dog car seat provide a larger and more comfortable resting space for dogs. [Passengers Can Sit Next to Dogs]: Using dog car seat can better utilize the space of backseat of a car, passengers can also sit in the back. If you use the full wrap around dog over, the rear seats will not seat people. [Large Dog Car Seat ]: 1, MIXJOY large back seat is