The item for sale is 4 Ounces (113 Grams) of Potassium Chloride (KCl). Potassium Chloride, also known as Potassium Salt, is a white, odorless, crystalline powder that dissolves easily in water. 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: Salt Substitute (Low Sodium, High Potassium Diets) / K Electrolyte Replenishing Drinks / Aluminum Welding Flux / Plating Solutions Electrolyte / Crystal Batteries.