1.Made of durable elastic and ultra-fine nylon mesh. 2.Socks can catch debris that cannot be caught by the filter, which also shortens and extends the life of the filter. < p>3. These pool skimmer socks act like a net that attracts and traps leaves, grass, hair, scum, oil, pine needles, pollen, insects and other debris. 4. Easy to clean: When the socks are dirty, they can be washed and reused several times or replaced directly. Specification: Material: Nylon Color: White Size: 10*20cm Package Content: 30*Pool Skimmer Socks