Package includes: 4 blue splash-proof faucets and fits almost all cylinder faucets with a diameter of 16-23mm. Compressed height 8cm/3.15in, extension height 11.5cm/4.52in, interface inner diameter: 2cm/0.79in, big head diameter: 4.5cm/ 1.77 inches. Quality material: Our faucet pressurized filter sink uses PP material, soft rubber and medical stone. Medical stone can absorb impurities and clean water quality, it is recommended to use it for cold water. Easy installation: manual installation without tools, just make sure your faucet filter extension matches the size of the faucet. Splash-proof design: the contact area of the shower water is large, the outlet filter filter filters impurities in the water, the water is fine and evenly distributed, and the water can no longer splash and save water. 360 swivel design: the flexible, energy-saving kitchen faucet hose water designed can be folded or shaped at will, 360 degree rotating design makes the use of cleaning more convenient.