Size: 83*53mm,170*53mm Material: Plastic Surface treatment: chromium plating Package Included:1*Faucet Product type: Aerators Product details: 1. Faucet water-saving device, three switch modes, stainless steel water outlet plate, fine water outlet, rotatable positioning and convenient installation. 2. It is easy to install without tools. Round faucets with 24 caliber inner teeth and 22 caliber outer teeth can be installed directly. Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. There is 1-3 cm difference according to manual measurement. Please check the measurement chart carefully before you buy the item. You can see more in actual picture and detail show.