Standard Abrasives Rubber Sanding Drum 702816, 1 in x 1 in x 1/4 in, 1 per case The Standard Abrasives Rubber Sanding Drum holds an abrasive band for contour work (band sold separately)Constructed from rubber, the drum expands at high speed for the closest possible fit with a band of the same size for controlled operationThis enables it to run smoothly over contoured surfaces and into hard-to-reach areas without skipping or jumping for a smooth, precise finish. Product Information Brand 3M Part # 7000121761 Line Standard Abrasives Origin Country USA Product InformationEnables polishing, finishing and blending on contours when smooth running is essentialNon-slip drum surface securely holds spiral bandPairs with coated abrasive bands or non-woven surface conditioning bandsRange of sizes helps ensure an ideal match between drum size and part for optimal resultsRubber drum enables controlled expansion of a spiral band for proper balance and smooth running at high speeds (band sold separately)Use same diameter drum and band