& Ootdtym Material: Rubber & Metal Color: As Picture Shown Color: As Picture Shown Feather Shank Diameter: 3.15mm(1/8")Shank Diameter: 12.7cm(1/2")Suitable: Fit for Dremel and Other Rotary ToolsFeature:1) Rubber nut, anti-skid material.2) Used to hold sand drum or sand strip for polishing sand, shape, groove, softwood finish, hardwood, fiberglass and more.3) Mandrel size matching 1/8" and other rotary tools. 4) Professional use or for home use. Quantity: 10pcs/setNote:1) please make sure the sand drum matches the rubber stem before you buy.2) please allow 1-2mm error due to manual measurement.3) due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!