This product has a great performance, quality and price. Neutralizes ammonia on contact with urine. Absorbs up to 140% of its weight in liquid and will do so repeatedly. Has less than 1% free crystalline silica (non-carcinogenic). Coverage of up to 1,000 sq. ft (5-6 times greater than competitive products. Can be used on dirt, wood, concrete or metal trailers/cages. Safe with all animals, horses, dogs, rabbits, goats, emus, alpacas, etc. Manufacturer: ABSORBENT PRODUCTS LTD. Stall Dry is composed of a natural blend of Diatomaceous Earth (67%) and Calcium Montmorillonite (Calcium Bentonite) (33%) in a crystal granule making it a top performing absorbent and deodorizer. All natural and OMRI Food Grade, Stall Dry is safe to use around all animals and in organic production.