The radiator bleed key is an essential tool for any household with a heating system. Its sturdy metal construction promotes longevity and reliability. The square socket design allows for easy and precise operation, making it simple to release trapped air from radiators. This tool ensures your heating system runs efficiently, providing consistent warmth throughout your space. Features -Color:White -Material:ABS -Size:2.10X1.80X0.90cm/0.83X0.71X0.35in -Userfriendly: operation of the bleed valve key and water valve wrench makes it easy for anyone to use -Thorough bleeding: the inner square socket key design ensures complete opening of the radiator bleed valve for release -Portable: the compact and lightweight design makes it easy to carry and store - use: ideal for radiators and other types of bleed valves, enhancing its utility -Easy to install: simply insert the key into the valve port for Package list: 4 x Radiator Valve Keys