Description:The small size makes it very convenient to carry and store. High quality and exquisite workmanship make it very sturdy and durable.High adaptability makes it very reliable and practical. Simple and convenient installation will not waste your time and energy.Made of brass material, it is very durable to use.The length of this product is 1.75cm, the width is 0.95cm and the height is 0.95cm.It is suitable for outdoor, camping, cooking, gas tank, camping stove and so on.Item Name: Inflation Valve AdapterMaterial: BrassColor: Golden ColorFeatures: High Adaptability, Compact, DurableSize Details: Size: 1.75cm x 0.95cm x 0.95cm/0.69" x 0.37" x 0.37" (Approx.)Bottom Hole Diameter: 0.4cm/0.16" (Approx.)Joint Diameter: 0.26cm/0.1" (Approx.)Notes:Due to the light and screen setting difference, the item's color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.Instructions:1. Weigh unused full butane canister and write with felt-tip on the base.2. Place empty canister to be refilled in freezer for approx. half hour or overnight.3. Remove canister from freezer and place adapter onto the canister.4. Take your new full butane canister and insert into adapter.5. Push canister firmly down for 10-15 seconds at a time, checking each time the weight of the canister until it matches the original weight written on the base.Matters Needing Attention:Considering safety, the refill canister weight should be lower than the original canister After you have refilled the canister it is always good safety practice to check the seal on the canister for no leaks Only refill your canisters in a well ventilated area, i.e. outdoors Package Includes:1 x Inflation Valve Adapter3 x Washers