Specification:
Material: PEI
Size: OD 7.7mm
Thickness: 4.92mm
Features:
✅Bearing custom NSK, bearing precision p5-8000 New design: the nut completely locks the bearing, and the bearing + bracket + nut are combined into one
✅Special colors: amber and white. Amber will oxidize and darken during use; white has no sense of transparency and is truly pure white.