Enhanced Drying EffectDryer balls separate clothes, roll and massage them over them, allowing hot air to flow more efficiently for faster drying. Dryer balls also help remove wrinkles from clothes and reduce static buildup. Enhanced CleaningThe washing machine balls come in two types: ball edge and gear edge, which increase the friction between the washing machine and the clothes, resulting in greater impact. These balls greatly improve the washing effect and cleaning power through their unique convex and concave design. Set of 4The laundry agitator balls can be used in many types of washing machines and can wash most types of clothes, bedding, etc. The laundry balls are 2 inches in diameter, 4 in a pack, and come in random colors. The soft material makes the cleaning process noiseless. ReusableDryer balls are made of high-quality rubber and can be used in any drum or washer dryer. They are soft and will not scratch your clothes, have no odor, are not easy to fade, are durable and can be reused for a long time. Protect ClothesDuring the washing process, the silicone dryer balls can effectively separate clothes, prevent knotting and pulling, and protect clothes from damage. Naturally soften fabrics while washing, making clothes more fluffy.