Bodyguard bicycle wheel lights (2 sets)Multifunction coloured LED bulbsWaterproof battery holderRequires 2 X AA batteries per set (supplied)Functions: Off, on static, on flashing (3 speeds)Spoke fixings suppliedAmazon price: £24.99 for 2 setsNow you can really stand out in the dark and be highly visible to other road usersInstallation video and functionality can be viewed at https://www.youtube.com/watch?v=X6wWoOfOxwk