[Newest product in 2021]: The latest design, only one product has a better use effect than the previous 4-piece package, and can collect more hair and fluff. [Easy to use]: Just put it in the washing machine when washing. The lint collector of the washing machine with net will let the hair and debris into the net to avoid clogging the drain pipe. Make sure you are using a top-loading washing machine, if itis a front-loading washing machine, it will not work. [Reusable]: The filter bag is made of high-quality non-toxic materials. Safe, durable, and reusable. Just wash after use. In addition, it is a circular design to avoid any damage to your clothes. Please put the filter bag in a cool environment and avoiddirect sunlight. [Working principle]: When the washing machine is working, the water will rotate some small debris to the top. When the debris falls, they are easily put into the floating net bag. Please note that this product is not suitable for front washing machines.