Good quality reproduction throttle twist grip, very similar to those fitted to Norton single cylinder models as well as International and SOHC Manx Nortons This one is to fit the larger 1" handlebar diameter, as used on many bikes pre-war
(Note: we sell genuine Doherty 7/8" twistgrips of exactly the same style. I cannot get genuine Doherty grips in 1" handlebar size - but in truth, other than the manufacturer's mark, I can see almost no difference in quality!, these are really very nice for the money)