The 216-piece complete rotary accessory kit includes everything you need for cutting, grinding, carving, engraving, shaping, sanding, cleaning, polishing, and much more. This set includes many types of rotary tool accessories you could want. If you have a rotary/polishing tool, this will be a great additional item to go along with your tools. Specifications: Package Weight: 110g / 3.88ounces Package Size: 150 * 100 * 35mm / 5.91 * 3.94 * 1.38inches Packing List: 2 * Grinding Wheel (Type 1) 1/2" Diameter 2 * Grinding Wheel (Type 2) 3/8" Diameter 2 * Grinding Wheel (Type 3) 3/8" Diameter Tapered 2 * Grinding Wheel (Type 4) 3/4" Diameter Mounted Disc 36 * Grinding Disc 15/16" Cutting 3 * Felt Polishing Disc (1/2 inch) 2 * Felt Polishing Wheel (1 inch) 2 * Colletts 2 * Mandrel (Screw Type) 2 * Mandrel (Standard Type) 3 * Steel Wire Brush (3/4") 3 * Steel Cup Brush (1 /2 inch) 1 * Dressing Wheel 159 * 15/16" Sanding Discs