Rester versión mejorada antigrietas 4 maneras de bloqueo magnético inteligente puerta de mascota, gato puerta con solapa para uso interior y exterior (tamaño grande), color blanco4 Switch Modes: This Cat Door is in Unique Smart Design. It Can be Adjusted to 4 Independent Models: fully Locked,In Only,Out Only,Both In and Out By Switching the Red&Geen Buttons. 4 Way Locking is Very Easy to Control Your Pet's in and out. Anti cracking Flap Durable Use: Compared with the Old one,This Upgraded Version Pet Flap Door is Much More Durable. Silicone Flap Instead of Acrylic,to Ensure No More Cracking. Waterproof and Weatherproof. Large