Features Bearing steel balls have excellent surface quality, high hardness and high load capacity. The ball is made of steel and thus ia of high quality and has good performance. The product is featured with stable appearance and long service life. The product is widely used in accuracy ball bearings and most aviation, transportation and industrial applications. Applications include casters, conveyors, skates, bicycles and a wide range of applications​ Package List: 30 x M6   20 x M720 x M8  50 x M4    50 x M4.5  50 x M5 30 x M5.580 x M2 80 x M2.5  50 x M3   50 x M3.5  Specification: Item Type: Steel Bearing Ball Color: Silver Material: Bearing steel Application: Widely used in accuracy ball bearings and most aviation, transportation and industrial applications Products Include: 30 x M6   20 x M720 x M8  50 x M4    50 x M4.5  50 x M5 30 x M5.580 x M2 80 x M2.5  50 x M3   50 x M3.5  Package List