Features: 【For the Sake of oOur Environment】long service life thanks to the use of 100% recyclable polyethylene. Now use the first-class alternative to filter sand or filter glass. Reusable multiple times, by machine and hand cleaning - so you can relieve your wallet at the same time. The high-quality material can bring you health and clean swimming environment. 【A Glass Clear Water】 the filter balls have been developed for quick and easy pool cleaning. Ideal for the pool in the garden, swimming pool, swimming pool or aquarium cleaning. The 3D depth filtration ensures more cleanliness in your pool. Thanks to the intensive pool care, flocculation agents can also be saved. .