Description Convenient safety insurance accessory. This adapter automatically shuts off gas flow when pressure is reached, to ensure gas safety using gas. For maximum filling, place your cylinder tank in the freezer for 30 minutes before filling . Built-in safety feature that will ensure you never overfill your smallest cylinder. Made of high quality material, durable and long life. The delicate workmanship will work well to ensure your safety. Product Description You dont need to buy another cylinder again, you can use this adapter to fill your convenient 1LB (16 . 4Oz). Handy safety insurance accessory. This adapter automatically shuts off gas flow when pressure is reached, to ensure gas safety using gas. Made of high quality material, durable and long service life. The delicate finish will work well to ensure your safety. For maximum filling, place your cylinder reservoir in the freezer for 30 minutes before filling. Built-in safety feature that will ensure you never overfill your smallest cylinder. Description: Net weight: approx. 113g. Color: black, gold. Size: approx. 66*50mm. Material: copper. Note: Please allow 1cm error due to manual measurement. Please make sure you do not mind before you bid. Due to the difference between different monitors, the photo may not reflect the actual color of the item. Thanks Package including 1* Propane Refill Adapter