High QualityMade of high quality sponge, strong and durable, with good flexibility and high resilience, can be used for a long time [Easy to use] Foam is easy to clean and replace, can be used continuously for about 2 months, comes with 4 pieces of foam for easy replacement ReusableThe filter element has high resilience, and its service life is longer than that of the ink cartridge. It can be used after multiple cleanings [Size] Swimming pool filter is 20cm long, inner diameter: 4cm, outer diameter: 10cm, easy to filter impurities ApplicableSuitable for intex bubble jet pure spa, swimming pool, bath, fish tank, etc. Package includes: 2* filter cottonA Dimensions may vary slightly due to manual measurements Due to the different display screens, there may be some differences between the color and the real object, thank you