ITEM NAME:400# sponge sand block woodworking sanding sponge sand block-100 x 70 x 25m A6J8 400# sponge sand block woodworking sanding sponge sand block-100 x 70 x 25m A6J8 It is suitable for surface grinding and can absorb water. It can be water-grinded for a long time and can replace water sandpaper. Sponge blocks can be made in a variety of shapes and sizes. The sponge grinding block is suitable for hand-polished furniture, surface polishing of plastic products, polishing of car repair refinishing parts, surface treatment of metal rust spots and plastics, and has remarkable characteristics such as water resistance, acid and alkali resistance.Coated with an aluminum oxide abrasive for use with wood, drywall or metal. Features: soft dry grinding, wet grinding, washable, reusable. Flexible foam sanding pads conform to almost any shape without altering the contours of the item. Great for sanding odd shapes, edges and into grooves. Reusable and washable, they last longer than sandpaper with less cleanup. Color: gray Material: Alumina product contains: 1 * sponge polishing block Only the above package content, other products are not included. Note: Light shooting 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.