At a guess, I would say the skull is life size (I don't know how big a Terminator's head is, so I'm taking a guess
) as it is pretty big when sat on my shelf at home.
For the £22.99 it can be bought for at Play.com, I think it is excellent value for money.
The build quality is good, with some nice touches of detail. The head is made of a good quality, sturdy plastic. The base feels a little bit flimsy if I am honest, but bearing in mind this is hollow as this is where the blu ray box is stored, this is to be expected I guess.
I have borrowed a picture from the bargain thread, hope Karlin doesn't mind
I can get some more pictures for you when I get home from work, however my camera quality isn't the best so it won't be able to do high quality macro shots