This is a tube of 6 grinding wheels, each measuring 22mm with an 80 grit coarseness. They are designed for use with 95W multi-tool kits and are compatible with Draper multi-tools as well as similar machines from other manufacturers. These wheels are suitable for grinding, sanding, engraving, and polishing tasks on mini power tools. The dimensions of the packaging are 12.80cm x 7.00cm x 2.50cm and it weighs 0.02kg.