Putting the washer balls into the washing machine canprevent clothes from intertwining,and also can use its strong friction tostrengthen the washing effect,thus makes the clothes cleaner. Usage The ballsimprove washing greatlyby unique convex and concave design, lot of water and energy.Clothing more fluffy,not twining Separate clothes effectively and soften fabrics naturally. These laundry scrubbing balls are made of premium solid soft PVC, durable and soft which willnot harm clothes and washing machine,good elasticity, and wont fade as well. Reusable High quality washing ball isdurable and reusable.10 to 15 balls are ideal for a wash weighing around 10 kilograms Material.Pants coat class hard cloth washing can put 8-10 balls.Laundry Ball could make washing machine and clothes kept rubbing greater impact force. SPECIFICATIONS Please Note