Hot Max 26190 E-Z Sander Hand Belt Sander With 3 Belts The E-Z Sander is a moulded, high-impact sanding block By simply turning the side thumbwheels, the internal plungers tighten the belt Reversing the thumbwheels loosens the belt, allowing the user to change to a fresh belt or different grit High impact plastic for long life Delrin thumb wheels tension belt for easy use and quick removal Wet/Dry sanding belts allow them to be used in many different applications  1 each 80, 120, and 220 grit belts are included Black anodized aircraft aluminum screws for durability Several different replacement sanding belt grits for any project (80, 120, 220, 320, 1000, and 1500 grits available)