I think it's only available in the UK (correct me if I'm wrong). It's just a packet of chocolates with different fillings in each piece - orange, coffee, caramel, maltesers, chocolate(!) and raisin (>_<). You'll never know what you gonna get (sorta like Bertie Botts Every Flavour Beans from Harry Potter). Well, actually, you can know - the size sorta gives them away (I think it's done on purpose). Some are flatter, some bigger, some smaller.
Well, these were my first few bites: coffee, orange, maltesers, caramel, coffee, caramel, chocolate, orange, caramel, maltesers, raisins. Hmmm... unpredictable?