... of bad smell in cloth & washing machineHow to use :1,put the cloths into the machine, then put the laundry balls, no need ... or stubborn stains, pre-processed with stain stick before putting into the machine. 3, Start to washing after 15 to 30 minutes’ dipping, washing ... machines. 3, Filled with solid ceramic balls, never used as toys for children. 4, Suggestion: no use to industrial use or large-scale ...