... reciprocal action occurs, and make stronger washing ability. 2, Free of harmful chemicals such as phosphor and boron, ... rid of bad smell in cloth & washing machine 2, Collapsible, cuff or stubborn stains, pre-processed with ... 1 balls when the cloths is below 3kgs, 2 balls when over it. 5, Keep balls ventilated ... balls every month, dry it in the sun. 2, Suitable for all the washing machines. 3, Filled ...