Petroad Deluxe Pet Booster Seat -High Quality Metal Frame Construction -Clip on Safety Leash - Black/Grey Quickly & securely mounts to your vehicle's passenger seat. It is also works in the back seat Easy to install and folds flat when not in use. Adjustable straps fit most cars, vans & SUVs. Very easy and quickly installation and super lightweight. The safety tether can lock your pet for protecting no harmfulness. The pet should be no more than 11 Lb. The straps is adjustable to fit the window.