🔥Adjustable Radius Flex Longboard Hand Sanding File Block Hand GrinderMAIN FEATURES Easy To Hold: Easy to Hold: lightweight, better sanding and smoothing, comfortable grip, larger contact area and a handle. Features: Hand Sanding Blocks can flexibly adjust the size of the , plane and concave, designed with a rotating handle and a groove on the back. Material: Made of lightweight Polyurethane Foam, the Hand Sander for Drywall, which can improve the work efficiency of related workers. Work with your sandpaper for wood,