Feature:1. [Sanding Sponge Block] The sponge polishing block is made of aluminum oxide and high density sponge, with high abrasion resistance and not easily cracked by water washing.2. [Dual Use] The high density sponge sanding block can be used for both wet and dry applications and can be ground with water for a long time.3. [Easy to Grip] Our grit blocks remove dirt effectively and are easy to grip and use, especially in hard to touch areas in the middle.4. [60320 Grit] The sanding sponge has 60320 grit specifications for long term use, providing you with good grinding and polishing results and a brighter surface.5. [Simple Operation] Our high density sponge sanding blocks are easy to use, with a incisive sanding surface and high grinding efficiency.Specification:Item Type: Sanding Sponge BlockMaterial: Aluminum oxide, spongeColor: BlueUse: For metal and non metal grinding and polishing, furniture grinding, metal antirust, wood products, etc..Package List:6 x Sanding Sponge Block