YINGJUN 4pcs Bike Headset Caged Ball Bearing 32-40mm Bicycle Frame Front Fork Rear Pearl Retainers Race Cycling Components PartsSpecification:Material: SteelColor: Black (As Pictures Show)Size: About 32-40mmWeight: About 40g Note:1. The real color of the item may be slightly different from the pictures shown on website caused by many factors such a..