Thanks for the fast delivery time. Looks like a high quality bottom bracket. The entire shell is made from nicely anodised aluminium. The cartridge bearings are all fully sealed and only time will tell how hard wearing they are. If a bottom bracket has sub-standard bearings you'll know it very quickly, within around 2-4 months of regular use. Again I'll update once I've used them for a few months. I really hope that this is a quality bottom bracket because if it is, I'll certainly be buying them again and I'll let all my riding friends know too!
great value and fits well