Rubber basketball size 3 (b3) Ball color:orange 30% butyl bladder, 3p: length-600m wt: 300 - 320g Cir: 560 - 570 m/m Channel: 4.5mm Packing: ea/polybag 50pcs/ctn Rubber balls of our company are manufactured from natural rubber material of our country. Vietnam is the largest exporter of rubber to the world's third so our balls quality is very good. Technology machinery imported from taiwan. Our sporting balls really from natural rubber (no chemical fillers, no artificial rubber). Packing: ea/polybag 50pcs/ctn