Manufactured with zinc alloy and a cross shape design, this radiator bleed key is sturdy and durable; robust material makes it long lasting 4 way gas box key comes with 3 shapes, including 2 square shapes, 1 triangle, and 1 round shape; use it anywhere according to the size and shape Wide applications of gas meter key make it ideal to use as wrench to turn the screws and valves of electric, water, gas, train, cabinet, and elevator Meter cupboard key is easy to grasp and use; comes with a center hole so you can hang with the key ring making it easy to carry The electric cupboard key comes in 4 shapes and serve as triangle key for meter box, square key which can open boxes, meters, cupboards. Use it according to the size and shape wherever you want. Use this multipurpose key for gas meter box, as practical wrench to turn the screws. Gas key for meter box is suitable for many valves of electric, water, gas, train, cabinet, and elevator. electric meter key comes with a center hole in the middle making it easy to carry wherever you want. Just attach it with a keyring and hang it anywhere you want. Light weight radiator key uk comes in small size making it travel friendly so you can easily carry it in your bag. Specification: Color:black Weight:47g/pc Product size: 72.22 * 72.33 mm, triangle end: outer ring diameter 14.31 mm, inner ring diameter 10.26 mm; round end: outer ring diameter 15.3 * 9.2 mm, inner ring diameter 5.6 mm; square end: respectively, outer ring diameter 12.1 mm, inner ring diameter 6.11 * 6.13 mm; outer ring diameter 14.31 mm, inner ring diameter 8.32*8.32mm Package includes:1pc*wrench