Quantity: one piece Product name: IPB conversion head Model: Z11 Specifications: 4.1 x 3.8 x 3 cm. Product material: aluminum alloy, nylon Net weight: about 40 grams Use of product: transfer of all kinds of long gas tanks, suitable for all kinds of stoves. Installation: There is a threaded valve on the upper part of the adapter, which can be screwed into the corresponding stove. On the underside is the CV bayonet joint, hold down, snap in and push up. bottom. Then turn it firmly (using light pressure) until it clicks onto the cartridge. Then it is secure (no movement) and no gas leaks. No need to operate the top thumbscrew Safety/convenience: The adapter can be removed from the cartridge at any time, allowing the cartridge to be quickly detached in an emergency. In addition, thanks to its plug-and-play design, you will be able to use your kitchen utensils with peace of mind anywhere in the world without worrying about the type of cartridges you will find during your travels/hikes or planning your cartridge inventory to advance. time. Good quality product