EZ Lock, 1" Diameter, Assorted Abrasive Wheels, Includes 2 Buffs: 1 Coarse, 180 Grit & 1 Medium, 280 Grit, For Use With The EZ402 EZ-Lock Mandrel Or Standard 402 Mandrel, For Cleaning & Light Sanding On Metal, Glass, Wood, Aluminum & Plastics, Compatible With All Dremel Rotary Tools.