Material: This kind of black practical tool key with horizontal cutting shape is made of zinc alloy, high quality, strong and durable, you can apply it to the long -lasting TimeMulti function: the utility instrument key has 4 shapes, including 2 squares, including 2 square shapes The shape, the shape displayed in the picture, a triangle and 1 key shape, it is functional, and can be according to the size and shape of the shape: 4-y: 7.2 x 7.2 x 7.2 x 7.2 x 1.3 cm/ 2.83 X 2.83 x 2.83 x 0.51 inches, suitable for your size, you can join or put it in a bag -type application: multi -function keys can be used as practical wrenchs and rotate screws, suitable for many electric, water, water, gas, gas , Train, train, cabinet, cabinet, elevator, etc. Notice: This practical program is not suitable for some kind of radiator, please ensure that the size matches your device, and then