Great quality headset top bearing which includes some small shims and an O-ring to get the ideal seal/height from the top cover (coloured bit) to your frame - Be careful that this doesn't touch though as it could rub.

The top cover has an O-ring which interacts with the forks also which is really handy at gripping the steerer tube, making assembly easier and reducing the risk of your forks dropping out the frame if the stem is removed.

Together with the Bottom Headset - Cup J - IS52/40, the Hope Cup 7 fits my Santa Cruz Hightower frame and Fox 36 fork perfectly. I've only just installed it, so no idea about longevity, but it's a smooth bearing and has the usual Hope quality feel.