20pc Dremel 684-01 Cleaning/Polishing Rotary Tool Accessory Kit. Includes(according to Dremel.com): 3 - 429 1 inch Felt Polishing Wheel; 1 - 520 Polishing Wheel; 401 Mandrel; 402 Mandrel; 1 - 403 Bristle Brush; 1 - 404 Bristle Brush; 405 Bristle Brush; 428 Carbon Steel Brush; 2 - 425 Emery-Impregnated Polishing Wheel; 1 - 422 Felt Polishing Tip; 421 Polishing Compound; and 414 1/2 inch Felt Polishing Wheel (6).