Function: Qiqiang propane filling adapter. Store silicone oil and lubricate your with supplemental propane. Leak free design: Silicone oil mix with propane when not in use. Silicone oil not leak from the valve stem. Mixing propane and silicone oil: Only when you the valve stem silicone oil flow out together with propane and enter your magazine. Use with any standard camping propane gas tank. Easy to use. and . Note: For Qiqian's use only. Before filling, add 3 drops of silicone oil to the oil port. Do not use instead of silicone resin. The nozzle of this adapter is not compatible with the material box with a bottom plate. It not reach the filling nozzle on like WE Hi Capa. Propane is heavier than air and should not be used indoors. If inhaled in large quantities, propane is toxic and highly . Note: 1. The cap top cover from batch to batch and does not affect usage. 2. The stainless steel needle standing vertically in the middle is linked to the gas cylinder. When the needle is pressed