1.Laundry Washer BallsThe Laundry balls could help scrub clothes, remove dirt/soil hair on clothes and make clothes cleaner. It's powerful enough to washing even if for denim, cotton and other strong fabrics which difficult to be washed. 2.No WindingPlease put the washer balls into the washing machine to prevent clothes from tangling, that improves washing efficiency and protects clothes. 3.Reusable & HealthyLaundry ball is made of high-quality Eco-friendly silicone material, It's chemical-free, durable and reusable, doesn't hurt clothes and washing machine. 4.Enhance Machine's Cleaning Power The washer balls with uneven protruding surface can improve laundry efficiency and reduce much time, they are useful to eliminate static electricity, cutting waste, saving water and energy. 5.Package IncludeThe package including 2 blue laundry balls. The diameter of the washing machine ball is about 5cm.