25 LB, Floor Dry, Premium All Purpose Absorbent, Designed For The Quick Clean Up Of Water, Oil, & Grease, Made Of Diatomaceous Earth, Naturally Occurring Mineral With Superior Absorptive Ability, Delivers 50% More Absorbency Per LB Than Clay Alternatives, Environmentally Friendly, 100% Natural Mineral, Medium Granulation, Leak Resistant & Moisture Resistant Poly Bag.