Weatherproof Dog House Door Flap Dog Door Replacement Flaps,DIY Cat Dog Door Flap, Doggie Door Dog Screen Door Insert It is recommended to press it in a ventilated place for a period of time before use. Aazon.co : 3-Flap ediu Dog Door Replaceent Flap with Screws, Extree Weather Replaceent... Note, for better wind insulation, overlap 0., 04in/0., 1cm. You can use with confidence. Specification: Color: light green Material: PVC material Product Size: 11., 8inx4., 9ft/30x150cm Package details: 1 x dog door replacement flaps Note: Due to manual measurement, the size and weight may have a certain error. Due to the difference between monitors, there may be a slight color difference. Aazon.co : 7.6 in x 6 ft Dog Door Replaceent Flaps, Preiu Thick Plastic Vinyl Strip for DIY... Doggy Door DIY Dog Door Flap Replacement - 11.8x4.9' Transparent PVC Strips For Pet Doors (Easy Cut-to-Size) Safe Plastic Dog Door Flaps Easy to Install: First, you need to cut the size you want, then drill 2-3 holes on it with an electric drill, and finally fix it on the top of the dog door with screws to complete the assembly.