... , natural & healthy 3. Long life span, save money 4. ECO wash ball1. Hi-Tech green cleaning product 2. Detergent free, natural ... any general washing detergents. 2, Collapsible, cuff or stubborn stains, pre-processed with stain stick before putting into the machine. 3 ... months’ using so that to get a better washing ability. Wash Ball (HF-W004)