PetSafe Cat Flap, Small, White Give your cat access to a litter box or food through any interior door 2-way slide lock to open or close flap to control your cat's use of the door High-impact, white plastic frame with transparent, hard flap that cats prefer for comfort and ease of use Simple installation for interior doors up 2 inches thick; includes detailed instructions, cutting template and hardware Designed for small cats and dogs 15lbs or less Flap opening size 5 3/4" W x 5 3/4" H Call, chat or email with our expert PetSafe US-based customer care specialists six days a week; They are waiting to assist you and your pet with your product needs at 1-800-845-3274 or by email at ccc3@petsafe.net PetSafe Brand has been an industry leading US manufacturer of pet behavior, containment and lifestyle products since 1991, helping millions of people and pets each year