A. This faucet aerator is made of ABS plastic, which is durable, wear-resistant, hard, beautiful, easy to use and odorless. B. It includes 6 aerators with dimensions of 1.9*1.9*1.5 cm; 2 wrenches with dimensions of 3.4*1.8*3 cm. It is recommended to measure the size before purchasing and select an appropriate product. C. Using the wrench, disassembly and installation can generally be completed within a few minutes. The aerator can usually be directly screwed into the faucet. No other tools are typically required, which is simple and convenient. D. Using the aerator may help save water and prevent water splashing. It can also reduce the noise of the faucet and stabilize the water flow. Replacing or cleaning the clogged aerator might effectively repair the faucet and make the water flow smoothly. E. It can be installed on the sink faucets in the kitchen, bathroom and washbasin. The wrench is suitable for many faucet aerators.