Chris King BB for Shimano Hollow Tech II and Race Face X Type cranks. 2 bearing cups, central sleeve and 3 spacers to set up in 68 or 73 shells. The bearings are smooth and free of any play, probably due for a re-grease, but as with other CK bearings, will probably last forever. Anodising has faded a bit and the cups have some fitting marks, but hard to see them when fitted to the bike. Bling for not too much bucks, £45 posted recorded.