1) Made from top quality synthetic rubber for maximum springiness 2) Sizes: diameter 18 -120mm 3)ASTM and EN71test report 1)logo can be printed on the surface and inside the balls2)3D balls, picture balls,printed balls,shaped balls,etc3) Special designs make them very popularPacking:Bulk packing, net bags, cylinders, canisters, display boxes, poly bags with header, blister cards