The item for sale is 8 Ounces (227 Grams) of Calcium Nitrate (Ca(NO3)2.4H2O). The item is in 2 bottles each containing 4 ounces of product. Calcium Nitrate has many uses. The total Nitrogen content is 15.50% (1% Ammonical and 14.50% Nitrate). The total Calcium content is 19%. Bottles are made of durable Polypropylene Plastic, which is a natural, translucent, lightweight, durable, and chemically resistant copolymer. The screw-top is completely leakproof. Bottle is sealed in plastic with the screw-top shrink-wrapped. HUNDREDS OF USES INCLUDING: Waste Water Treatment / Concrete Accelerant / Match-head Ingredient / Cold Packs.