... use for 1000 times 2. No powder,quite clean 3. Make private logo Mineral magnetic laundry washing ballProduct Advantage:1. ... mineral materials,like tourmaline, medical stone, meerschaum, quartz powder, bios to wash your clothes more beautiful. The environment-protecting ceramic ... ball-forming, roasting, soaking with emulsifier solution, drying to obtain the invented small ball, then these small balls ...