They are plastic miniatures, provided as giveaways to a Doctor Who magazine a couple of years ago back when I lived in Hull (2010, if memory serves). Reasonably detailed for the price, and I don't mind them being of the "new paradigm" design - paintscheme-wise, I'm trying to emulate the cheerful technicolor daleks of the Cushing films and the TV21 comic strip, and for my taste, it works surprisingly well.
I just wished I had picked up a couple more sets, but at the time I wasn't really interested in Doctor Who.