Drum sanding sleeves come in two sizes, 4-1/2 x 1-1/2 inches and 4-1/2 x 1 inch. Ideal for hand contour sanding and smoothing projects. This roller sander is compatible with most electric drills, including handheld drills, cordless drills, and pneumatic drills. The quick connect handle fits most electric drills, such as lithium, hand, and impact drills. The kit is suitable for sanding and polishing soft and hard materials, finishing, contouring, bore smoothing, and material removal. Can be used on wood, metal, plastic, glass, and stone, including rust removal on metal surfaces. The drum mandrel features self-expanding rubber pads that secure the sanding belt tightly to the drum for improved polishing performance. If the sanding belt becomes dislodged during use, ensure the drum is fully tightened and securely fitted to the sleeve. Wear safety glasses during use, as abrasive particles may be ejected at high speeds. Sanding metal may cause faster wear on the grinding surface; replace the sleeve promptly to maintain optimal performance. Color: As Shown Material: Sandpaper Package Contents: 1 set x Spindle Sander Note: Light reflection and display differences may cause slight variations between the item color in the image and the actual product. Measurement may vary by +/- 1-3 cm.