These 80 grit silicon carbide sandpaper sheets measure 9" x 11" and come in a pack of 25 with waterproof latex backing, suitable for both wet and dry sanding. Designed for versatile use, they excel in metalworking, woodworking, automotive bodywork, ceramics, glass, and various DIY and industrial projects. Their durable resin bond ensures effective smoothing, rust removal, and surface preparation across multiple materials. Ideal for professionals and hobbyists alike, these sandpapers deliver reliable performance for precise finishing and crafting needs.