You don't need detergent or bleach due to the way the sponge becomes rough when exposed to water. Simply add water to the pad and rub away dirt and grime. This makes the pad fantastic for cleaning hot tubs and pools since there is no need to use potentially harmful chemicals near the water and it is more environmentally friendly.Pack of 3 Miracle Pads to easily clean dirt and tough stainsUnique chemical free way to clean surfacesJust add water to easily rub away dirt and grimeIdeal for hot tubs, pools, outdoor and indoor cleaningTry it in the kitchen or on garden furniture to see miraculous resultsProduct weight: 0.06kg