Description:These filter balls are made of polyester material, which is eco-friendly and durable for long time used.They are lighter and more efficient than traditional filter media because these filter ball have strong adsorption and fast filtration.Made of polyester material, which is light and useful.The length of the package is 32cm, width is 22cm and height is 4cm.It is suitable to filter water in swimming pool or aquarium fish tanks.Item Name: Filter BallsMaterial: PolyesterSize Details: Package Size: 32cm x 22cm x 4cm/12.6" x 8.66" x 1.57" (Approx.)Notes:The quantity is about 175pcs, due to manual calculation, the quantity might has 1-5pcs more or less, hope you can understand, thank you.Due to the light and screen setting difference, the item's color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.Package Includes:1 x Bag of Filter Balls(Total 175Pcs)