Eachine1 240pcs 4mm Wheel Bearing Carbon Steel Balls Bike Bicycle Ball Bearings

Descriptions This item is made of carbon steel, great replacement for the broken or missing steel balls on the bearing wheel. Ideal accessory parts for bicycle repairing use and rebuilding your bicycle's bottom bracket. Applications would include casters, conveyors, roller skates, bicycles, overhead trolleys, drawer slides, garage doors and door locks. Wholesale purchase would be more preferential. Specifications Material: carbon steel Color: sliver tone Diameter: 4mm / 0.16" Notes Please allow a bit manual measuring errors. Package included 240 x 4mm Bicycle Ball Bearings