This new sanding drum set is designed with a flexible tightening roller. It can quickly tighten those commercially available sandpaper while keeping a flat grinding surface. It helps you to finish a complete and precise grinding outcome.This patent design allows you to get rid of glue or use sanding drums in a specific form The patented design of this sanding drum eliminates the need to buy replacement sanding sleeves. Cut and fold any type of sheet sandpaper to size for the particular drum size you're using. The item makes it easier and faster to replace sandpaper. Recommending thickness of sandpaper between 0.6~0.8mm, if to choose thinner sandpaper would cause the tighten roller to lose function of tightening Package include: sanding drum x1; combination Wrench x1, #120 grit sandpaper X1, instructions x1(Instructions on how to replace sandpaper) The sanding drum body is made of plastic and covered with TPR. It feels comfortable in use and has a small swing, which makes the work more accurate and efficient Suitable use sanding holes, contouring edges, and buffing out irregular shapes and buffing out irregular shapes. And use with drill presses and hand power drills