Product Size: The Extra large size flap Measures 14.17 in Width x 23.62 in Height.Weather Resistant: The flap is made from flexible, durable, weather resistant materials,with magnetic closure,to help protect your home from outdoor weather.Thicker and Stronger: Compare to other flap,it has added magnetism on both sides,There so it can close all the way on the sides after dogs go through it.Perfect Fit Pet Door: Flap Only. The Pet door flap replacement is compatible with Ownpets Extra large Aluminum Pet Door.Easy Installation: Installs in just