High quality material: made of aluminum, copper and high temperature resistant nylon. Perfect fit, no leakage Automatic closing device: There is a good seal and the brass valve has an automatic closing device. There is no leakage when connected to a gas cylinder, even if the gas stove is not connected. EASY TO CARRY: These gas cylinder connection adapters are small, lightweight and easy to transport. Suitable for split ovens, butane containers. Easy to use: The snap lock of the adapter is first aligned with the bayonet of the gas cylinder. Then push the adapter head firmly and turn it clockwise until it stops spinning, finally connect it to the stove Ideal for outdoor activities. outdoor: suitable for a variety of stoves, such as gas canister, gas stove, camping stove, burner, camping stove, and therefore is very suitable for outdoor activities such as camping, picnics niques and barbecues Specification: Dimensions: 44 x 3 mm Color: silver, red, yellowMaterial: aluminum, copper, nylon resistant to high temperatures. Uses: Converting only cans in stock. Great accessory for outdoor camping, picnics, barbecues, etc. Consists of aluminum, copper and tough nylon at high temperatures, sturdy and durable, excellent sealing. The automatic locking function, when connected to the long gas cylinder of the tank, will not leak if the stove is not connected. < br> With this adapter you can replace the nozzle bottle with the valve cartridge, so that you can use cheap butane cans for your camping stove. Scope of delivery : 3 x gas cylinder adapters Note: Gas cylinder and gas tank for the range are not included.