This cat flap is made of plastic and works silently. It has a flap with special seal and a magnetic lock. Free cat flap is weatherproof. Product details: silent action, weatherproof, transparent flap with a special seal and a magnetic lock, easy and fast fitting, 3 year limited guarantee. It has the following functions: the cat can get in and out, the cat can only get in, the cat can only get out, the cat can neither get in nor get out. The cat flap's dimensions are as follows: self lining up to 13 mm, total height of 21 x 21 cm, cut out size of 16,5 x 17,4 cm, flap size: 15,8 x 14,7 cm, self lining: 13-65 mm. Colour white.