Electromagnetic Cat Flap White. These proven products use a super compact collar magnet to guarantee instant entry for selected cats and to keep stray pets out. All models feature a 4 Way Lock and are supplied with 2 collar magnets. Approx. 12 month operation from 1 x PP3/9V battery (not included). Easily fitted to wooden doors and panels to 60cm thick. Silent action will not frighten pets or disturb owners. The brush sealed flap with magnetic closure ensures a draftproof, weatherproof seal.