Wide Application: As practical wrench, turn the screws, suitable for many valves of electric, water, gas, train, cabinet, elevator, etc. Can also be used to stop cocks and outside taps 4 shapes: Including 2 square shapes, 1 triangle, and 1 key shape Dimension: 7.2 x 7.2 x 1.3 cm/ 2.83 x 2.83 x 0.51 inches Material: Good quality zinc alloy, sturdy and durable Weigh: 56g/ 1.98oz/ 0.123lb, can be hung on the key ring for easy carry or put it in your pocket, Weight: 0.0771617917 Pounds, Manufacturer: Maveek