Aerator key material: the faucet aerator keys are made of ABS, strong and sturdy, which can effectively remove faucet aerators Size: 12 pieces M16.5, 12 pieces .5, 12 pieces M21.5, 12 pieces M24, 48 pieces in all, with 20 pieces cache faucet aerator key removal wrench tools, sufficient quantity can meet your needs Fit most cache aerators: our wrench tools are suitable for most of cache faucets aerators, which are practical and convenient in daily use Easy to use: with these aerator keys, you can easily unscrew your faucet aerator out and then replace or clean the blocked one, fixing low flow faucets Aerator key: help remove most cache faucet aerators, please measure carefully before buying in case of unfit situation Colour: blue + gray + red Material: plastic Package Contents: 4 set x Cache Aerators Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.