10x BALLS BEARING STEEL 1/8" (3.18 mm), 5/32" (3.97 mm), 4.5 mm, 3/16" (4.76 mm), 5 mm, 7/32" (5.56 mm), 5.8 mm, 1/4" (6.35 mm), 6.5 mm, 7 mm CAGE BIKE BOTTOM BRACKET WHEEL HUB HEADSET VINTAGE EROICA