bicycle steel balls is used for the bicycle parts.Its size rangs from3-50.8mm and grade fromG1000-G100. packing :carton/drums bicycle steel ballsmaterial:carbon steel (AIIS1010,AISI1015,AISI1045,AISI1085)size:3-50.8mmMOQ:1 TONPACKING :carton with anti-rust oil,carton with anti-rust paper.steel drum with oil packing,steel drum with anti-rust paper,pallets