The radiator bleed key is an indispensable tool for ensuring your heating system operates efficiently. By releasing trapped air, it helps to prevent cold spots and improve heat distribution. Made from sturdy copper material, this key is built to last and is easy to use, making it a practical choice for both professional plumbers and homeowners. Features -Color:Golden -Material:Copper -Size:3.70X3.70X0.80cm/1.45X1.45X0.31in -Robust copper: made from copper material, this tool offers exceptional durability and reliability for all your radiator bleeding needs -Userfriendly bleed key: equipped with a bleed key that simplifies the air bleeding process, making it easy for anyone to perform - compatibility: designed to work with various rv radiator components, including bleed valves and heat sinks, for comprehensive utility -Effortless installation: features a installation process that saves , making it convenient for users -Improved heat dissipation: effectively enhances the heat dissipation of your rv radiator, ensuring a comfortable and warm environment Package list: 2 x Keys