Dryer Balls Reusable, Reduces Clothing Wrinkles And Saves Drying Time Free When the washing machine rotates, it can absorb the hair, thread and stains on the clothes through friction with the clothes, so as to make the clothes cleaner and flat. In the dryer, Agitators lift and separate the fabric allowing hot air to flow more efficiently, helping dry your laundry quickly. The bumps and spikes on the balls massage the fabric so it comes out softer and fluffier. Agitators pack a punch in the washing machine. As your washer spins, the Agitators pound into the fabric, forcing soil and stains to the surface. color: blue Size: 6*5cm Quantity: 4pcs 1.As different measuring methods,it will occur 1-3 cm deviation about the items,please ensure that it is okay for you before ordering. 2. Because of different monitors and lamplight, the picture may not reflect the actual color of the item, really thank you for your kind understanding. 3. Only the above package contents, excluding other products.