• The ball is solid
• Environment friendly. Lack of chemicals which may harm the environment
• Improve washing greatly by scrubbing clothes, save water and energy
• Help out with getting out dirt and stains, and perfect to use them on denim, cotton, and other sturdy fabrics--nothing too delicate
• Separate the clothes for a more efficient process, and they work great for the task, 6-10 balls are ideal for a wash weighing around 5 kilograms
• Color Random

The Using Steps：

1. Put the washing balls and clothes in the washing machine
2. Drain the washing machine
3. Pour an appropriate amount of detergent or laundry detergent
4. Washing
5. OK