【High-quality material】: Made of high-quality polyester, durable, practical and can be reused many times. 【Function】: Removes small debris, grease and dust deposits, including ultra-fine sand and algae, to quickly filter pool impurities and keep the water clean. 【Easy to Clean】: The microfilter bag can be used for hand washing; easy to install and replace, it is recommended to replace it every 4-8 weeks to maintain a good cleaning effect. 【20 Value Packs】: Contains 20 microfilter bags, perfect pool cleaning accessories, regular replacement can extend the life of the pool filtration system. Note: The data are all measured manually, please allow 1-3cm error, due to differences in light and display, there may be some color differences, please refer to the actual item received.