The Campingaz C206 GLS is the classic blue pierceable gas cartridge containing 190 g of butane, for Campingaz stoves, lanterns and burners designed for pierceable cartridges such as the Bleuet and Camping 206 ranges. Unlike older pierceable cartridges, the C206 GLS has an integrated Gas Lock System that limits gas leakage if the cartridge is accidentally disconnected from the appliance. As a pierceable cartridge it is single-use: once fitted it should stay on the appliance until empty. Store upright in a cool, ventilated place away from flames and direct sun, and keep out of reach of children. Butane does not vaporise well in very cold conditions.