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.EASY TO USE: high density sanding blocks are easy to use, with a incisive sanding surface and high grinding efficiency.WET AND DRY: high density sanding sponges can be used for both wet and dry applications and can be ground with water for a long time.REMOVE DIRT: sanding sponges remove dirt effectively and are easy to grip and use, especially in hard to touch areas in the middle.DURABLE MATERIAL: This sanding block is made of aluminum oxide and high density sponge, high abrasion resistance, not easy to be washed and cracked.Colour:Photo ColorMaterial:Aluminum oxide + spongePackage Contents:6 x Sanding SpongeOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.