Toss these pure wool balls into the dryer to cut your drying time (and energy costs) while softening laundry naturally. Designed to last years, they're handmade by a California design studio specializing in eco-friendly home products. Made of 100% natural felted wool. Absorbs moisture from laundry, which reduces drying time and energy use. Softens clothes and reduces static naturally with lanolin. Antibacterial; resists mildew. Can be scented with essential oils for fragrant-smelling laundry. Adds fluffiness to down comforters and blankets. Set of two balls, each approx. 3" diam. (6 oz. total).