?Outstanding Quality? The grinding sponge block is made of sturdy, durable and high strength material, which protects it against time and abuse. Lightweight and easy to carry, elastic and not easy to deform. ?Excellent design? Hand sanding block has a comfortable grip, suitable for long-term operation, does not fatigue, does not move hands. The dust collecting function can be realized by connecting the dust collecting hole and the dust collector pipe. ?Easy to use? The grinding sponge block allows you to bear strong without pressure deformation. The surface holds the sandpaper firmly in place and the padded backing has just enough to allow the abrasive to function as it should. ?Excellent performance? Block Hand sanding block makes your finishing efforts more efficient and consistent than hand sanding with foil. The manual block distributes the pressure evenly so that you get and maintain a level surface. A sanding block allows you to apply even pressure and prevents your sandpaper from settling or slipping. No chips or fingerprints on the surface. Product description Specification: Material: plastic Weight: 226g / 8oz Grinding discs Holes: 22pcs Shape of grinding disc: square Grinding disc type: magic sticky type Grinding disc size: 198 * 70mm Package list: 1 x sanding block