Material: this black utility key designs with a cross shape, that is made of zinc alloy with good quality, it is sturdy and durable, you can apply it for a long lasting time Multi functions: the utility meter key has 4 shapes, including 2 square shapes, 1 triangle, and 1 key shape showed in the picture, it is functional and can be applied so long as according with the size and shape Dimension: the 4-way utility key measures 7.2 x 7.2 x 1.3 cm/ 2.83 x 2.83 x 0.51 inches, proper size for you to carry it hands or put it in your bag Wide application: the multi-functional keys can serve as practical wrench, and turn the screws, suitable for many valves of electric, water, gas, train, cabinet, elevator, etc. Carry easily: the crossing key is 56 g in weight, and there is a hole in the middle of the cross key, it can be hung on the key ring for easy carry