【MATÉ HIGH QUALITY RIEL】 WEVOL Swimming pool filter ball is made of polyester fibers, which are harmless and environmentally friendly. 1300g swimming pool filter ball can replace 48kg of filtration sand. Compared to filtration with Unlike traditional sand, the filtration balls are much lighter and also save time when filling the filtration system. 【FILTER BALL WITH EXCELLENT FILTRATION】 The diameter of the filter ball is approximately 5 cm. Featuring great elasticity. and a strong ability to With adsorption technology, swimming pool filtration balls can effectively filter fine suspended particles and improve the quality of the water. some water. No more sand or dirt in the pool！ 【WASHABLE & REUSABLE】 Our swimming pool filter balls have low wear and are very durable. The pool filter balls are also machine washable and reusable.（Comes with a mesh bag for easy cleaning.） 【EASY À USE】 Swimming pool filter balls are easy to use. to use. They are suitable for most water filtration systems