Specifically designed for very large cats or small dogs such as Yorkshire Terriers, Pekingese, Dachshunds, Miniature Poodles, and Spaniels with shoulder heights up to 36 cm. A secure 4-way locking mechanism ensures complete control over your pets' entry and exit. Suitable for installation depths of up to 50 mm – ideal for all doors and thin panels. Quiet opening and closing – pets won't be startled. Transparent flap – preferred by most animals. Weatherproof, draft-proof flap with brush seal and magnetic closure. Rainproof seal. Secure double locking with 4-way lock.