This radiator bleed valve key is an essential tool for maintaining your heating system. The key is crafted from metal, providing a reliable and way for your radiator maintenance needs. Its compact size makes it easy to store and handle. Features -Color:Silver -Material:Copper -Size:3.80X3.50X0.90cm/1.49X1.38X0.35in -Note: 5mmX5mm square calibers -sturdy material: made from copper materials, this radiator bleed key is built to last, ensuring durability and long term use. -Easy to use: with a bleed key, it allows users to easily operate and maintain their radiators without any hassle - fit: designed to fit radiators, these keys are and suitable for a wide array of radiator models -Wide compatibility: suitable for various types of taps and radiators, it can also be used as a wrench for different valves -Improved radiator efficiency: by effectively releasing trapped air, these keys help enhance the radiator's overall heat dissipation, leading to better list: 1 x radiator accessories