4 x SANDING BLOCK SET: Our Sanding Sponge Block Set comes with four sanding blocks with a high density sponge centre. You get 1 x Coarse (60 grit), 1 x Medium (80 grit), 1 x Fine (120 grit) and 1 x Super Fine (220 grit). This range from Coarse to Super Fine allows you to sand and polish all surfaces. WASHABLE & REUSABLE: Our Sanding Blocks are designed for wet & dry use. If the abrasive material starts to become clogged simply wash it with water and let dry, before using it again. LONG LASTING & DURABLE: Our Sanding Blocks are made from high quality materials that provide superior sanding when compared to sandpaper, and can be simply washed and reused when they begin to clog. Use on all types of sanding and polishing projects. SHAPES TO ALL SURFACES: Our sanding sponges are soft on the inside so they can take the shape of any surface being sanded. This makes them ideal for wrapping around edges or sanding anything with grooves in. HANDY SIZE: Each Sanding Block is 10cm x 7cm x 2.5cm thick. They fit perfectly in the hand to make sanding quick and easy.