This PetSafe 640 pet door provides your pet with the independence to enter the house freely without you having to open the door. This PetSafe pet door was formerly known as the Staywell pet door. The sturdy aluminum frame features reinforced corners for heavy use. The flexible, soft flap is tinted and adjustable. The magnetic flap closure and sealing strips along the sides of the flap opening create a weather-resistant seal. A closing panel is included for improved weather resistance and access control for your pet to the pet door. Installation is very easy. Color: White; Material: Aluminum; Overall dimensions: 32.9 x 6 x 50.2 cm (W x D x H); Cut-out size: 27.7 x 45.1 cm (W x H); Flap size: 26 x 41.3 cm (W x H); Maximum shoulder width: 26 cm; Suitable for dogs up to 45 kg; Suitable for wooden doors, brick walls, PVC/UPVC, and metal doors; Insertion closing panel included; With magnetic flap closure; Fitting screws included; Easy installation.