Need to get into tight corners or do some detailed finishing work? These triangle-shaped sanding sheets are ideal. The pack gives you 50 pieces in total: 10 sheets each of 800, 1000, 1500, 2000, and 5000 grit. That's a great range from medium-coarse (800 for shaping) all the way to super fine (5000 for a glass-like polish). They're made from silicon carbide abrasive, which works well on wood, metal, paint, and composites. You can use them wet or dry - using them wet helps reduce dust and can give a smoother finish. The back has a hook-and-loop (Velcro-style) fastener, so they attach quickly and securely to a compatible triangular sanding pad or block. Each sheet is 90mm on each side. Perfect for detailed woodworking, automotive bodywork, smoothing 3D prints, or even high-grit polishing tasks. A versatile and affordable set for any DIYer or crafter's toolkit.