they come with a stupidly long manufacture guarantee on them but if they are fakes they are dangerous usually blow up and catch fire lol (i only know this cos my missis is a hair stylist) ps if they are fakes they are worth the 100 quid deffo cos you will get layed because she thinks she has a pair of ghds then when she goes back to normal and starts pissing you off again you can laugh when they catch her on fire what more could you ask for