100% Polyester CUSTOMIZE YOUR SIZE & COLOR - This customized window screen is especially for window size 30.01" - 40" width. We offer professional window screen customization service. Please let us know the size and color you need and we will tailor it exactly as you provided to ensure that the window screen fits your window perfectly UPGRADED AND STRENGTHENED - The window screen is wrapped with thickened webbing in four sides, more sturdy than other fabrics, not easy to break. Thicker thread used in the whole stitching; 6 needles per inch, much sturdier than most other products which are three and a half needles EASY TO INSTALL - The window insect mesh comes with a full-frame hook & loop tape so you do not need to use repair kit. Apply our window screen in 3 steps. Clean the window frame. Attach the supplied Hook strip to four sides and fix them firmly. Peel off the backing paper and stick the window screen mesh to your window frame REINFORCED POLYESTER NET - The window screen is made of reinforced polyester material which has excellent wrinkle resistance, much sturdier and has good transmittance. The window screen mesh allows fresh air and sunshine into your home and help you stay away unwanted elements REMOVABLE & WASHABLE- The hook & loop design makes the insect window screen removable and easy to clean. If there are some creases on the screen mesh, please don't worry, it will recover after being taken out and flattened for a while