[Water Saving] faucet aerator can fully mix the water and air flowing through to form a foaming effect, improve the scour force, and reduce water consumption. A faucet with an aerator installed saves about 30% more water than a faucet without the aerator. [Splash-proof, noise-proof, constant-current] After the water flow is mixed into the air, the aquasource faucet aerator will become softer and reduce the impact force, it can prevent the water from splashing everywhere when the water is out. [filtration]It is also a kitchen bathroom faucet filter built in , which can filter impurities well and ensure water hygiene and safety. And the sink aerator is suitable for kitchen and bathroom. [Packing List]You will receive 10 M18.5 faucet aerators for kitchen bathroom sink aerators replacement and 2 wrenches. According to the different water quality in the area, for your water sanitation and safety, it is recommended to replace the aerator directly every 3-6 months. Colour:gray+blue Material:plastic Size:18.5mm x 11.5mm Package Contents: 10 x 18.5mm faucet aerators 2 x 18.5mm wrenches Important Note Please check the diameter of your faucet before ordering to ensure that you will get the right size 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. Note: 1. Please allow 1-3 mm error due to manual measurement and 1-3g weight error make sure you don't mind before ordering. 2. Due to the lighting of the photos and the difference of monitors, the pictures may not reflect the actual color of the real item. Please make sure you don't mind before ordering, thank you! About Shipping: 1.please pay attention to your delivery address such as: name, street, house number, doorbell/email without name, etc. is correct, or the order will not be delivered correctly. 2.All items will be shipped within 3 business days after the payment is received. Most times you will receive them within 8-12 days then. The specific delivery time is depend on circumstances. 3.During the shopping process, if you have any questions, please feel free to consult us, we will reply you within 24 hours Hope you have a pleasant shopping experience!