These 80 grit sandpaper sheets, measuring 9" x 11" and available in a 50-pack, feature silicon carbide abrasive grain on waterproof latex-backed C-weight paper with a resin bond. Designed for both wet and dry use, they excel in smoothing and preparing surfaces across metalworking, woodworking, automotive bodywork, ceramics, glass, and various DIY and industrial projects. Their durable construction ensures effective rust removal, surface shaping, and finishing, making them a reliable choice for professionals and hobbyists seeking versatile, high-performance sanding solutions.