DIE CAST CONSTRUCTION - Zamak #3 Zinc Die-Cast Alloy for durable outdoor or indoor applications. | UNIVERSAL FIT - Fits both 1/4" and 5/16" gas valve stems on both ball or globe gas valves. | BEAUTIFUL FINISH- Bright polished chrome finish looks great with any decor. | PRECISION MACHINED - Quality construction for good looks and durability. | KEY LENGTH - Oval end adds 1" to overall length.