The material: this black utility key design with a cross shape, which is made of zinc alloy with good quality, it is strong and durable, you can use it for a long time Multi-functions: the utility meter button has 4 shapes, including 2 square shapes, 1 triangle and 1 button shape shown in the picture, it is functional and can be used as long as according to the size and shape Dimensions: the 4-way utility button measures 7.2 x 7.2 x 1.3 cm / 2.83 x 2.83 x 0.51 inches, right size for you to carry your hands or put it in your bag Wide application: the multi-function buttons can be used as a practical wrench and rotate the screws, suitable for many valves of electric, water, gas, pull, cabinet, elevator, etc Please note: nasty key is not suitable for a type of radiator. Please make sure the size fits your device before purchasing.You'an store products