Material: Made of high quality zinc alloy. Good stability, corrosion resistance, rust resistance, high strength and durability. Surface treatment: The surface of the multifunctional cross key is electroplated to improve wear resistance and corrosion resistance, making it smoother and more beautiful. Small and convenient, easy to carry: The 4-way key is convenient to carry and use anytime, anywhere. And the product is equipped with a double-word screwdriver to get the job done faster. Multi-function: The control cabinet key contains 4 shaped meter keys, 2 squares of different sizes, 1 triangle and 1 solid square button of different sizes. Wide range of applications: Zinc alloy cross keys are suitable for most water meters, gas meters, heat meters, elevators and control cabinets on the market.