Campagnolo Veloce CT front derailleur. Designed for compact chainsets, however I have also used it with a 52 and 53 ring with no issues. I think it is better than a standard front derailleur with 34 and 36 rings when changing from small to big ring. the very odd scrape here and there but very good used condition. Will last someone many more years as had light use. It says 10 speed but used it with 9 and 11 speed too. Why would it not!