Drum sanding sleeves come in two sizes, 4-1/2 x 1-1/2 inches and 4-1/2 x 1 inch. Great for hand contour sanding and smoothing projects. This roller sander is suitable for most electric drills, such as handheld drills, cordless drills or pneumatic drills. The quick connect handle is suitable for most electric drills, such as lithium, hand and impact drills. The kit can be used for sanding and polishing soft and hard materials, finishing, contouring, bore smoothing, material removal and so on. Suitable for sanding wood, metal, plastic, glass, stone or metal removing rust, etc. to smooth. The drum mandrel with self-expanding rubber pads allows the sanding belt to fit closely with the drum to achieve better polishing results; if the sanding belt falls off from the mandrel when in use, please make sure that the drum has been tightened and fits tightly with the sleeve. Please wear professional safety glasses to protect your eyes, because the sand grains may fly out when the grinding wheel is rotating at high speed; the grinding wheel wear out faster on the metal , please change the sleeve in time to achieve better polishing effect. Colour:As Shown Material:sandpaper Package Contents: 1set x spindle sander Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.