... Abrasive: Silicon Carbide Grit: 240#-2000# Size: Available on request Waterproof Sand Paper sheet:This item is high level Oslong B320 ... flexible paper backing, adaptable in dry and wet sanding. Back paper has had anti-slip treatment, the sanding texture and ... shaping, lacquer surface, mirror surface treatment, back paper is flexible, with tenacity, back paper and abrasive surface is subtle and durable ...