Material: This black utility wrench is designed in cross shape, made of zinc alloy, sturdy and durable, you can apply it for a long time.rust and extend the life of the key. Multiple Functions: The 4 shape utility meter key, including 2 square shape, 1 triangle shape and 1 key shape shown in the picture, it is functional and can be applied as long as the size and shape are respected. A wide application: Multifunctional wrenches can serve as a practical wrench and turn screws, suitable for many electric, water, gas, train, cabinet, elevator and other valves, a wrench toMultiple purposes, easy to receive. Just the right size for you to carry it in your hand or put it in your bag, and there is a hole in the middle of the cross, it can be hung on the key ring for easy carrying. Multifunctional wrenches can serve as a practical wrench and turn screws, suitable for many electric, water, gas, train, cabinet, elevator valves, etc.