Package Information: Includes 4 black metal triangle radiator key with a ring hole for easy carrying. .Premium Material: This radiator key is made of zinc alloy, can provide a long service life, black metallic paint, strong and durable, dispel all your worries. .Size: The size of this triangle radiator key is 15*10*2 mm, which is suitable for most triangle key holes please check the size of your device carefully before buying. .Reasonable Design: The surface of the gas meter box key is circular arc design, the edge is smooth, and it can be hung anywhere without hurting your hands. .Wide Application:This radiator bleed key can be used as a wrench to turn the valves of various products, such as gas, radiator and other valves, which provides great convenience for your life. .