Material: Sanding sponge uses high-density sponge as base material, adopts high-quality mineral sand coating, 4-part coating, can be used in dry and wet state, sharp and wear-resistant . It is a good hand polishing tool. High quality: The sponge has good elasticity and water storage function, which can reduce hot flashes and improve work efficiency. High-density sand planting has higher grinding efficiency than sandpaper, and its service life is 5 times that of standard sandpaper. It is a great substitute for sandpaper. Easy to Use: The number of particles is printed on frosted sanding block, easy to distinguish and use. In the polishing process, special attention should be paid to grinding from coarse to fine. The larger the number, the finer the particles and the better the polishing effect. Wide application: Sanding sponges are widely used for grinding all kinds of metal and wood products. It can be used for wooden furniture renovation, paint stripping and polishing, metal jade polishing, rust removal of rusty cutting tools, roughing of plastic products, cleaning of stove, etc. Packing12 sanding sponges, different particle sizes of 60/80/100/120/180/220, two of each type. Aluminum oxide and high density sponge make grinding more efficient. Type 60 sanding sponge is equivalent to the coarseness of 100p sandpaper, 80# sanding block = 120-180p sandpaper, 100# sanding block = 240-400p sandpaper, 120# sanding block = 500-600p sandpaper, 180# sanding block = 80000# sanding paper = 22220# sanding block 100 0P sanding paper Wet and dry sanding Uses of wet sanding blocks Excellent on wet or dry sanding, can be used directly in water. The strength of the sanding block is excellent, the plasticity is strong, and it is not easy to tear. Sandpaper for wet polishing to minimize dust. In the kitchen, clean metal pans, stove grease and stainless steel sinks. In swimming pools, stained surfaces can be cleaned. In the yard, scratches on the sidewalk can be treated. In terms of shipping, it can clean and polish rust and corrosion of boat accessories. Each sponge comes with quality abrasive material on all 4 sides. It can be cut arbitrarily according to grinding requirements. Furniture Renovation and Primer Treatment Wood sanding blocks, ideal for a wide range of uses, from stripping wood to final finishing. Cleaning Sink Stains, Removes Scratches Our washable and reusable sanding sponges are perfect for scrubbing and cleaning sinks. Removing rust and treating stubborn stains from metal Sanding sponges remove stubborn stains from stainless steel cookware. Also suitable for porcelain and glass. Auto Parts Repair and DIY Creation The sanding blocks are suitable for polishing auto parts, plastic shells, amber jade, DIY and craft creations.