Pool skimmer socks protect the pump impeller and shaft seal from dae or clogging, extending the lifespan of your pool filter system.These premium quality nylon pool basket filter socks are made from ultrafine mesh and durable elastic, which can be reused many times.colour:whiteMaterial:nylonsize:20x10cmPackage Contents:30 x pool socksOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.