Description: Economical and Practical: Made from durable ultrafine nylon mesh, fine mesh and strong elasticity, fit for various types of skimmer baskets, will keep your filter clean, protects your filter system, saving you money. Trap all Hair and Debris: This swimming pool skimmer socks can effectively filter Oil, hair, bugs, grass, pollen, leaves, and any other small debris to prevent debries from clogging your pool filtration system. Efficiently Cleaning and Save Money: : Our pool skimmer filter net socks fit for most types of pool pumps, filter baskets, pool baskets, or strainer baskets. Also works with spas, hot tubs, jetted tubs and more. Reduces Pool Maintence Time: Pool filter sock is a very effectively filter that frustrating algae that used to continually, and catch the smallest particles. These filter socks are a priceless time saver and collect all of that fine silt and dirt! Pool Accessories: Using this professional swimming pool skimmer filter socks for fast, easy and efficient cleanup of leaves and debris from pools. Save money and time. Specification: Material: Nylon Net Color: Blue Size Chart: 13.5x20.5cm/5.31x8.07inch Package Includes: 5 Pieces Swimming Pool Filter Skimmer Socks(3 Pack) Note: Replace with new sock every 4-8 weeks.