With the automatic closing function, when connected to the long tank gas cylinder, it will not leak though stove is not connected. Light weight, easy to carry. Great accessory for outdoor camping, picnic, BBQ, etc. Suitable for split type furnace. Usage: Convert straight has cans.Suitable for split type furnace. With this adapter you can change the nozzle bottle to the valve canister so that you can use inexpensive butane jugs for your camping stove. : Specification: Material: Aluminum Alloy Color: red Diameter: 3 x 3.5cm Usage: Convert straight has cans Package List: 2PCS x canister head adapter Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm. Product Notes: Please allow a little manual errors.Due to the lighting of the photos and the difference of monitors, the pictures may not reflect the actual color of the real item. Please confirm acceptance before ordering. About Shipping: Please ensure your shipping informations are correct to avoid delivery issues. All orders are shipped within 3 days after payment. Delivery usually takes 8–12 days, The specific delivery time is depend on circumstances. If you have any questions during your purchase, feel free to contact us. We will respond you within 24 hours.