... the cloths into the machine, then put the laundry balls, no need to add any general washing detergents. ... don’t forget take out the ball after you wash over 2, Suitable for all the washing machines. ... 3, Filled with solid ceramic balls, never used as toys for children. 4, Suggestion: ... that change the refill ceramics or the laundry balls after 12 months’ using so that to get ...