Aerator key material: the faucet aerator are made of ABS, strong and sturdy, which can effectively remove faucet aerators Size: 4 pieces M16.5, 4 pieces .5, 4 pieces M21.5, 4 pieces M24, 16 pieces in all, with 5 pieces cache faucet aerator key removal wrench tools, and 1 plastic wrench,sufficient can your needs Fit cache aerators: wrench tools are suitable for of cache faucets aerators, which are practical and convenient in daily use Easy to use: with these aerator , you can easily unscrew your faucet aerator out and then replace or clean the blocked one, fixing low faucets Aerator key: help remove cache faucet aerators, please measure carefully buying in case of unfit situation material: plastic Color as shown Package Contents: 1 set x Cache Aerators Only the above package content, other are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.