Features: 1. This product is made of high quality and soft plastic sponge, toxic-free and smell-free. Directly set on the faucet, simple and easy. 2. This product has simple structure, simple and convenient to install and remove, have the function of the splash and filtering, has no effect to the water yield of faucet. 3. Effect: can filter sediment, iron pieces and others. Note  : 1. This product is suitable for home single head faucet, is suitable for the outer diameter of 15mm to 20mm. 2. Before installation and use of this product, can put this product in the warm water (about 30 ) to soak for 1 to 2 minutes.