PetSafe Interior 4-Way Locking Cat Door, White High-impact polypropylene frame and a quiet and transparent flap Imported A great solution to give your cat access to any interior room, while giving you complete control; Perfect for access to the bedroom or even food or the litter box when kept behind closed doors to keep the dog and kids out 4-Way slide lock to choose your cat's access: open, locked, in-only (cat can enter but not exit), and out-only (cat can exit but not enter) Simple installation with detailed instructions, cutting template and hardware included High-impact, white plastic frame with a transparent, hard flap that cats prefer for comfort and ease of use For installation only in interior doors 1 1/8" to 2" thick For small cats or dogs 15 lbs. or less; flap opening size 5 1/2" W x 6 1/8" H Call, chat or email with our expert US-based customer care specialists six days a week; they are waiting to assist you and your pet with your product needs PetSafe Brand is an industry leading US manufacturer of pet behavior, containment, and lifestyle products since 1991, helping millions of people and pets each year