Window Net - SFI 27.1 - Mesh - 18 x 22 in Rectangle - Black - Each. Durable, lightweight, black polyester mesh net increases driver vision and stop smaller debris than conventional ribbon or string nets. 18 x 22 inch SFI 27.1 rated black mesh style net has large built-in sleeves in top and bottom of net to accept most round tube and flat bar style window net installation kits. Sold individually.