General description These gas refill adapters are designed for butane gas bottles and canisters, allowing you to refill your canister easily and efficiently. The set includes three adapters made of durable copper, making them lightweight and portable for outdoor activities like hiking and camping. Technical specifications Material: Copper Weight: 0.0088 kg (8.8 g) per adapter Contents: 3 gas refill adapters Usage Weigh the unused butane can and label the bottom with a marker. Set the empty can down for about half an hour or overnight. Take the canister out of the freezer and put the adapter on the canister. Insert your new, full butane canister into the adapter. Press firmly on the ground for 10-15 seconds, checking the weight of the can each time until it matches the original weight marked on the ground. Always check the tightness of the canister after filling to avoid leaks. Only fill your canister in a well-ventilated area, outdoors. Other information Lightweight design makes it