Cadbury is launching Cadbury Boost Duo and Cadbury Double Decker Duo.
According to the company, the Duo format broadens the appeal of these two single bars to men and women, making the bar more manageable because they can eat half now and save half for later. Rrp is 65p.
Meanwhile, Cadbury has also redesigned its standard size Boost and Double Decker bars to give greater impact.
Kate Harding, trade communications manager at Cadbury, says: "Cadbury Boost and Cadbury Double Decker have been redesigned to create increased purchase intention and greater stand out, enabling consumers to find the product faster on shelf. Cadbury Boost has been brightened with a new sky blue wrapper, while the colours of Cadbury Double Decker have been made more vibrant and the logo size increased."