Magic stain removal makes clothes cleaner. Environmentally friendly laundry balls are made of PVC material. Eco-friendly and chemical-free. Strong and durable laundry balls can be used in washing machines and are not easily broken. They are more wear-resistant and durable than traditional hollow balls. Reusable high quality washing balls are durable and reusable. 5 to 10 balls are ideal for washing materials weighing around 10 kg. You can put 8-10 balls in when washing hard cloth like pants and jackets. How to usePut the laundry balls into the washing machine. This not only prevents clothes from getting entangled with each other, but also uses its strong friction to enhance the washing effect.