The expanding arm has broken off and there is a loose bit inside which is hard to get to... I havent tried to take the main assembly apart (I am at work...) to see it can be glued etc....
I've bought a few little pieces from this guy and he's definitely a good seller but when I asked about another part and he said he doesn't have the car now so couldn't get hold of it which probably means he's not got much if anything else to put up for sale.