Premium Robotic Pool Cleaner Bags: These robotic pool cleaner bags are made of heavy-duty nylon and feature reinforced stitching and premium zippers for maximum durability. Made from the same material and weave as the Polaris 360/380 bags, it can hold all types of debris, such as leaves, twigs, sand, and silt, without tearing the bottom of your pool. EASY TO USE: The extra-wide zippered opening makes it easy to empty and clean debris from the filter bag. The hook closure can be removed in seconds for quick and easy cleaning. PERFECT FIT: This universal filter bag features sturdy hook-and-loop closures that snap securely onto your pipe cleaner and seal tightly at the top. The safe and secure closure provides total reliability. BEST COMPATIBILITY: Our cleaner bags work perfectly with Polaris 360 and 380 utility bags (parts K13 and K16). Great value for money 2 puur polaris robot socks: Comes with 2 filter bags for pool cleaner, you can change a bag and put back a clean one so the vacuum