These radiator keys are made of quality iron, light and practical, durable and sturdy, not easy to break, easy to hold and turn, even after screwing in a few rigid valves, there is still no distortion on the key. The radiator key is useful for bleeding air from radiators. Features - Color: Golden. - Material: Iron. - Size: 4.30X3.40X1.00cm/1.69X1.34X0.39inch. - Every radiator lock key features pre-drilled hole for convenient carrying and storage, not easy to get lost. - Our radiator valves keys are mainly used on faucets and radiators, and can be used as wrenches for different kinds of valves. - The product is light, portable, not easy to break, easy to use, and is a convenient and practical radiator exhaust valves. - Fits many radiators in the market, easy to use and brings convenience to your life. - Light and durable, the radiator wrench can save effort, good for every home, they are very sturdy and not easy to break or deform. Package list: 10 x Radiator Keys