MATERIAL Non-woven PVA + zeolite + calcium sulfite + natural coconut shell activated carbon + non-woven PVA, five layers of water filtration, absolutely safe, no secondary pollution, non-toxic. ERGONOMIC DESIGNConvenient compact, suitable for 1.6-2.7cm diameter faucet, with a fixing ring, water will not fall or leak. SPLATTER-PROOF AND WATER-SAVINGUniform filter hole size, you don't have to worry about splashing, it has the functions of filtering, splash-proof and water-saving . IMPROVE WATER QUALITYRemoves heavy metals from chlorine and other impurities in water, improves water quality, makes it softer and safer. Widely UsedUsed in home kitchen, bathroom and any place you need. FEATURES: This product is through the internal drainage layer to achieve filtration and rapid stratified purification, which can remove residual chlorine, and other impurities in tap water. Compact and convenient, it is suitable for old and new style faucets, with a ring of fixing, water will not fall or leak. Improves water quality, makes water softer and safer.