General description A great replacement for broken or missing steel balls on bicycle wheel bearings. Ideal accessory parts for bicycle repair use. Technical specifications Diameter: 7mm / 0.27 inch Material: Steel Weight: 140g/set Quantity: 600 Pcs Other information Note: Light shooting and different displays may cause the color of the item to differ slightly from the real thing. The measurement allowed error is +/- 1-3 cm.