Calcean's Baha Play Sand is nature's only renewable and sustainable play sand. Unlike common play sands, Baha Play Sand is silica-free and quartz-free -- safe for your child and ecofriendly. It has a smooth, round texture and uniform grain size, cushioning and cooling for safety/comfort. Baha Play Sand is ideal for indoor and outdoor use. It's also perfect for building and molding sand castles!DEVELOPMENTAL BENEFITS: Baha Play Sand is a quality mode of play for your developing child. Sand play helps children develop primary motor skills and benefits their intellectual development. It promotes creativity, learning about measurements and new shapes, and stimulates their imagination.NOTE: The food-safe/nontoxic colorant (if applicable) and sand are natural products, and there may be natural variations in color. Finer sand particles may cling to skin, but should not stain skin and will wash off with soap and water.