Faucet Aerator Material: The faucet aerator is made of ABS plastic. The fine mesh has good filtration effect and can maintain a steady and constant water flow without splashing. Faucet Aerator Key Material: The Keys to remove the faucet aerator are made of plastic. If your water faucets are running slow or weak, remove the aerators and clean or replace them using this simple tool. Easy to Install: Faucet filter replacement comes with faucet aerator removal tools. Unscrew the cap, pops out the old insert, pop in the new one. Easy, economical, fast. Wide Application: Faucet aerator can be fitted to kitchen sink faucets, bathroom taps and lavatory faucets spout head. Package Includes: 6 pieces faucet cache aerator(18.7mm x 14.5 mm) with 2pcs removal wrench tool. Please measure the diameter of the faucet spout thread before purchase.