Inflate Butane Canister Gas Burn-er Accessories Stove Adapter Gas Converter Head Gas Refill Adapter

Label:Yes Color: Brass Material:Copper Package included: 1pc Camping Cans Adapter Quantity: 1pc Size: 17.6 *9.7mm

How to use it Weighing unused full butane canister and write with felt-tip on the base. Place empty canister to be refilled in freezer for approx. half hour. Take canister from freezer and place adaptor onto the canister. Take your new full butane canister and insert into adaptor. Push canister firmly down about 10-15 seconds at a time, checking each time the weight of the canister.