This listing is for a pair of new Cannondale-lefty compatible bearings.  Inner and outer.  I have these on 3 wheelsets and they've lasted through 3 seasons with zero maintenance.  Not a whole lot of rainy rides on them, but would put these up with the best out there.  They are abec-rated, and very well sealed. DO NOT waste your time with cheap ceramics!  They are finicky to install, and even when installed correctly have limited longevity.  Free shipping in the USA, international shipping is an extra $4.  Thanks!