ShineMate provides various sizes of hand sanding blocks for small and large area sanding, equipped with multi-hole backing plate, work with sanding mesh and multi-hole sandpapers to achieve dust-free dry sanding. The sanding blocks can also be connected to a dust extraction system, and suction power can be easily adjusted by the air valve. Except for flat area sanding, there are also special backing plates that are designed for concave and convex areas, as well as curvature-adjustable sanding block to meet all your hand sanding needs.