The package includes: 2 blue faucets + 2 pink anti-splash faucets. Suitable for almost all cylindrical faucets from 16 to 23 mm in diameter. Compression height 8cm/3.15", Extension height 11.5cm/4.52", Fitting inside diameter: 2cm/0.79", Big head diameter: 4.5cm/1.77". QUALITY MATERIALS: Our pressure strainer faucet is made of PP, soft rubber and medical stone. The medical stone absorbs impurities and cleans the water. It is recommended to use it with cold water. Easy Installation: Manual installation, without tools, just make sure the faucet filter extension matches the size of your faucet. Anti-splash design: large contact area with shower water, the outlet filter filters impurities in the water, the water comes out thin and even, the water can no longer splash, which can save water. 360° Rotation: The flexible hose of the water-saving kitchen mixer tap can be bent or shaped as desired, and its 360° rotation makes it easy to use and clean.