sorry I lied on both facts above, less than £30 and I actually got them from a UK company but they are the same as the ones you get from China. I had to mess with the spacer a bit to fit over the r&g bar end I have but very impressed with them.
These are the ones I got....
http://www.ebay.co.uk/itm/1411989759...84.m1497.l2649