Shimano 600 Starfish headset parts includes everything except for the balls. Just order up some balls and you should be good to go. All the parts are in nice clean condition with minimal too marks. This is JIS size 1" headset, which is different from standard 1" headsets. The parts that press into the frame are 30mm. The crown race is 27.0 mm. Includes just what is shown in the photos.