Size: Outside 42cm(H) x 37cm(W) Inside 36cm(H) x 31cm(W) Suitable for medium-sized dogs, please measure your pet’s size and compare before purchasing it with the door size. Allow your pet independent passage: the soft magnetic closure allows your pets to enter and exit freely without pressure, the flaps close automatically after you walk through the door. Lockable: Two sliding latches on the underside of the flap help you to lock the dog gate. Make sure your pet is left indoors unattended. A built-in magnet will automatically close the door after your pet leaves. Material: Ultra-hard ABS material and the screws fasten the dog gate door firmly; Indoor fixed tree hung with screen door frame; the inserted wire mesh makes the flap scratch-resistant; The cute paw design will add more fun to your home. Easy Installation: You can install this pet door on a screen door, window and any other screen area you like, the included pet door package with screws and instructions Product