uxcell Precision Chrome Steel Bearing Balls 30mm G10 2pcs sold2026 Rub in "Stair Gel (Refresh B0DXBCTBSS Rub in "Stair Gel (Refresh Aroma)" until it dries Our products are produced to the highest quality control standards following Good Manufacturing Practices (GMP) guidelines some of the most common are listed below: 1 8" is often used for clusters and old Eglish style headsets 1 4" is often used for rear wheels and bottom brackets 3 16" is often used for front wheels 5 32" is often used for headsets with pressing cups Specification: Precision: G10 Diameter: 30mm Hardness: HRC58~62 Material: AISI 52100 chrome steel Package Includes: 2 Pack x Bearing Balls uxcell Precision Chrome Steel Bearing Balls 30mm G10 2pcs