High Quality Materials: The control cabinet key is made of high quality zinc alloy, with good stability, corrosion and rust resistance, high strength and durability. Coating process: 4-way wrench undergoes surface coating treatment to improve wear resistance, corrosion resistance, smoothness and aesthetics. Multi-Function: Control cabinet key contains 4 shapes of cabinet keys, 2 different sizes of squares, 1 triangle and 1 different sizes of square keys. Small and Light: Easy to carry and use anytime, anywhere. A two-shape screwdriver is included to complete the job faster. Wide Scope of Application: The universal cross key is suitable for most water and electricity meters, heat meters, gas meters and control cabinets on the market. Please make sure the size matches your devicebefore buying.