A brass fulham quick release coupling nozzle to suit 8mm gas hoses. As the coupling is 8mm hose to 8mm hose, these are ideal for use with patio heaters, camping grills and BBQ's. How to UseSlide the knurled collar back to release one side of the hose nozzle to disconnect safelyPerfect for camping and outdoor cookingMaterial: MetalFinish: GlossyWater resistance level: WaterproofSize: 1.57 inchesSize: 8mm (L) x 8mm (W)Weight: 43g