[Dense Mesh]: Our metal mesh is 20 holes per 2.54cm/inch, the length of each square is 0.91 mm, higher density mesh that filters out small flyings and some outdoor airborne debris.[Package Includes]: 3 pcs wire mesh sheets, 30x42cm/11.8x16.5 inch, 1.5mm thick. This is the right size for general use without cutting or piecing.[304 Stainless Steel]: Our mesh sheet is made of 304 stainless steel, hard and 800 high temperature resistant, this allows it to remain outdoors without rusting and deforming.[Wide Use]: It can be used to install on garage windows, bedroom windows, kitchen windows to filter the air, also can be used to make the garden fence, hamster cage, rabbit hutch. In addition, it can be used as a barbecue baking tray.[Be Careful]: The edge of the mesh is relatively hard, so in order to avoid scratches, you pay attention to wear gloves and other protective tools when using. Wish you have a pleasant experience.