Effortless Temperature Control & Energy Savings: Adjust your radiator valves easily to improve heating efficiency, reduce energy costs, and create a cozy, warm home environment. Say goodbye to cold spots and high energy bills. Heavy-Duty, Long-Lasting Quality: Crafted from metal, this radiator key is built to last. Strong enough to handle repeated use without wear, ensuring you get reliable performance season after season. Preparation: Make sure the heating system is turned off. Have a small container or towel ready to catch any expelled water. Locate the Bleed Valve: The bleed valve is usually located at the top or side of the radiator near . Insert the Radiator Key: Insert the radiator key into the bleed valve. Turn the Key: Turn the key slowly counterclockwise hear the hissing sound of air being released. Once water starts to flow out, immediately turn the key clockwise to close the valve. Check: the radiator is fully bled and there are no leaks. Complete 6-Pack for Versatility: Comes with 6 radiator keys and 2 handy key rings. Keep one , in the car, or on your tool belt-always to adjust your radiators whenever needed. Colour:Silver Material:Metal Package Contents: 6 * Radiator Key 2 * ring 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.