GOOD HELPER FOR POOL: Pool filter socks can capture leaves, grass, hair, oil, pine needles, pollen, insects and other debris. This can effectively prevent these debris from blocking your pool's filtration system, thus extending the life of the filter system/pool filter. DURABLE MATERIAL: Pool skimmer socks are made of high-quality nylon, which is highly elastic and can be used for a long time. The ultra-fine mesh design of the filter socks can effectively filter most debris and make your pool cleaner. PERFECT SIZE: Our skimmer basket socks use a common size---22 * 13 cm. With its super elasticity, it can fit all types of pool filters, baskets, or skimmers. LIFE CYCLE: These pool skimmer socks can generally be used for 4 to 8 weeks with good filtering effect. If the filter socks are dirty, you can clean and reuse them, or discard them and replace them with new filter socks. HIGH VALUE COMBINATION: One set contains 20 reusable pool skimmer socks, which is enough to meet your daily needs. Your good choice is to check the socks once a week. If you have too much debris, it will overflow and dirty the pool. Due to different lighting and monitors, there may be some color difference, please understand. Delivered quantity: 20 pieces.