Petlibro Libro Air Pet Feeder, Black-AUTO WIN 12/05 A well-thought-out design for your pet’s health ensures the PETLIBRO AIR is pest-proof and spillproof and stops pets from changing controls. Just press the top button to remove the air and securely lock the tank. Even if the feeder is tipped over, the pet food is never spilt. The control panel cover prevents pets from changing the controls. Never worry about a naughty paw.