This product is an adjustive multi-angle sanding slider that consists of a sanding slider bottom plate with angle scale, an adjustable pointer baffle, and a sanding slider. It can process components with suitable sizes from 0 to 180 degrees with the dial scale. The sanding slider is made of aluminum alloy and finished in red. Product contains multi-angle sanding slider, #600 grit sandpaper (3), #1000 grit sandpaper (3), #1500 grit sandpaper (3). Please purchase supporting self-adhesive sandpaper for this product also made by DSPIAE.