High quality material: The universal key is made of high quality zinc alloy, with good stability, anti-corrosion and anti-rust, high strength and durability. Electroplating process: The surface of the multi-functional cross key is electroplated to improve wear resistance, corrosion resistance, and be smoother and more beautiful. 4-way multifunction: contains 4 instrument keys, 2 squares of different sizes, 1 triangle, 1 solid square buttons of different sizes. Easy to carry: The Phillips key is small and light, easy to carry, works anytime and anywhere, and the product is equipped with a two-word screwdriver, which can complete the job faster. Wide range of applications: The zinc alloy cross is suitable for most water meters, electricity meters, heaters, gas meters, elevators, control cabinets, etc. Please confirm that the size correspondsto equipment before buying.