- High quality material: The handy key is cross-shaped, made of high quality zinc alloy, strong and durable. 2. 4 Shapes: The metal Phillips key includes 2 square-shaped utility keys, 1 triangular water meter key and 1 key-shaped gas meter key. 3. Easy to Carry: Suitable size to carry your hands or put it in your bag, and there is a cross key hole in the middle, it can be hung on the key ring for easy carrying. 4. Wide range of applications: The multi-function knob can be used as a convenient wrench to tighten screws and is suitable for valves such as electricity, water, gas, trains, cabinets, elevators, etc.