Specifically developed for the largest cats or small dogs such as Yorkshire Trriers, Pekinese, Dachshund, Miniature Poodles and Spaniels up to a shoulder height of 360mm. A secure 4-way locking mechanism give complete control of your pets movement. Self lining to 50mm thick – ideal for all doors and thin panels. Silent action will no frighten pets or disturb owner. Transparent flap is preferred by most pets. Draft and waetherproof brush sealed flap with magnetic closure and rainproof seal.