4. Size Details --- All angle grinder sanding discs are 4 inches in diameter and 16 mm in thickness and hole diameter. 3. Nylon Fiber Fins Discs with Sandpaper --- They can remove rust, paint and coatings from uneven curved surfaces quickly and easily, without damaging the surface; High tenacity fiber, special viscose, water and oil resistant, long service life. 2. Our grinding wheel set for sanding is suitable for angle grinders and polishing tools. Widely used for cleaning, finishing and polishing metal, stainless steel, glass, jewelry, plastic, ceramic, marble, on wood. 1. Unlike other sanding discs and paint remover wheels, these pads have great wear resistance and will not damage aluminum while removing even the most paint in an old draft. Also, if you have stainless steel tube polishing wheels, our polishing pads will make the tube repair of small scratches and damage and make it shine. 5. 8 Pieces Nylon Fiber Caster Set --- Includes 2pcs 120 grit green nylon fiber discs and 2pcs 240 grit red color discs for high-speed sanding and heavy duty removal, which offers fast and long lasting cutting, and 2pcs green nylon fiber 180 grit polishing wheels and 2pcs red 320 grit, suitable for polishing and finishing type of surface conditions. It will meet requirements from removal to fine polishing., Weight: 0.7054792384 pounds, Manufacturer: Rtxbvg