uxcell Precision Chrome Steel Bearing Balls 30mm G10 2pcs sold2026 7 oz Package List: 2 QWORK Low Voltage Mounting 7 oz Package List: 2 pieces of Luwint Compression Band Note: To be washed separately from other laundry to avoid winding with other clothing Rub in "Stair Gel (Refresh Aroma)" until it dries Suitable for a range of purposes 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