1.【Convenient to carry】: This black utility wrench is small, easy to carry, and can be hand-held or put in a pocket. 2.【Material】: This black utility wrench adopts a zinc alloy cross-shaped design, which is sturdy and durable and can be used for a long time. 3.【4 shapes】: The metal cross key includes 2 square buttons, 1 triangle water meter button and 1 round gas meter button, a total of 4 shapes. 4.【Wide range of applications】: The multi-function knob can be used as a convenient key and screw, suitable for many valves of electricity, water, gas, trains, cabinets, elevators, etc. 5.【Wide Application】Can be used not only in faucet, valve, spigot but also in cupboard,electric, gas meter, hose bib,train, elevator and outdoor.