Guinness Nitrosurge are not your ordinary can. Guinness Nitrosurge cans work with the Nitrosurge Device and use ultrasonic technology to break down the nitrogen in Guinness and give you a beautifully smooth two part pour every time. Expertly designed to create perfectly formed nitrogen bubbles, creating the surge and flavour of beautiful, great tasting Guinness for every pour. Take control of the iconic Guinness surge and settle and craft yourself a perfectly domed pint from the comfort of your own home – or wherever you enjoy your Guinness. Guinness Nitrosurge Device not included. This item is shipped in transit friendly packaging.