1200 grit; 25 sheets per package. Unigrit papers are waterproof. Economical to use - works faster and lasts longer. Won't load up as quickly as conventional sanding products. Made for professionals Unitgrit Finishing Papers have precisely uniform grit particles leave a smooth, even sanding pattern that buffs out in seconds. This eliminates the risk of deep sanding scratches that require compounds to remove. These are safe and effective for the use on all paint finishes, including clear coats.