Hard chromed steel ball bearings for Campagnolo.
1/4-inch for Campagnolo non drive side rear cassette hub. Nine for £1.70 plus postage
7/32-inch for Campagnolo drive side rear cassette hub and also for Record front hubs. Ten for £1.70 plus
postage (Ten for the rear and nine for the each side of the front)

3/16-inch for Campagnolo Chorus, Athena, Veloce, etc front hubs. Ten for £1.70 plus postage (ten for each
side)