WHAT YOU GET --- 3Pcs 3Inch 75mm Abrasive Nylon Wheel Cup Brush Set for removal of rust, and paint. 1/4inch shank fits all drills. Hardened steel wire for reduced wire breakage & . gray is coarse (80), Red is medium (120), blue is fine (240) grit. THAN WIRE BRUSHES --- to use than wire brushes, SYNTHETIC, chemical Nylon Bristles are extremely safe and not spark, corrode, rust, shed, puncture skin, unlike more abrasive metal or steel brushes | Industry's softest yet sturdiest Bristle integrity with outstanding bend recovery after continued and prolonged use. --- offers design for coarse brushing preparation, heavy grout removal, polishing and scrubbing, this Nylon Cup Brush is gentle on all materials and made from top quality nylon for maximal user safety, gentle cleaning & extended brush use. APPLICATION WIDELY --- Nylon Brush kit is an All-Material-In-1, safe and rust and paint remover and cleaner on ALL wet or dry applications like Metal, Steel, Stainless Steel, Wood, Aluminum, Plastic, PVC, Tiles, Stones and more, while maintaining its bristle integrity after extended use. DESIGN REASONABLE --- Designed for easy access into narrow holes and confined areas. Crimped style for light to medium duty applications, Removes rust, scale and paint in hard to reach areas.Nylon cup and wheels abrasive Brushes mounted on 1/4 inch Hex shanks, Fits any drill or Impact Drivers. Colour:Red+blue+grey Material:Nylon + metal Size:75mm Package Contents: 1 x red polishing wheel 1 x blue polishing wheel 1 x gray polishing wheel Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.