I waited six months before commenting - this ball is perfect for my machine, including linen, jeans, towels ... I put it in a small bag for delicate garments to avoid too much friction, I wash to 30 ° C, and even need to rinse - once drained and my laundry is clean and sweet, without the need for fabric softener. Gone, allergies and itching due to washing products, hello saving water. NB: It is very important to dry it regularly in the sun or cold air.