These 320 grit silicon carbide sandpaper sheets (9x11 inches, 25 pack) are designed for both wet and dry use, delivering smooth, precise finishes on wood, metal, ceramics, and more. Their durable waterproof latex backing ensures long-lasting performance, making them ideal for fine sanding, surface preparation, and refinishing tasks. Perfect for professionals and DIYers seeking reliable, versatile sanding sheets that provide consistent results across various projects.