Bathtub Drain Tip Toe Tub Trim Set with Two Hole Overflow Faceplate, Bath Drain Trim Set Conversion Kit Assembly, Coarse Thread Replacement Trim Kit (Brushed Nickel) Brushed Nickel industrial_best_sellers_Jan2025 reinforced walls or overhead One reinforced 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 rubber washer 2pcs faceplate screws