... that specialize in manufacturing balls and roll on bottle:1.plastic ball made of different material ,such as PP,PE,ABS ... cosmetic bottles. Silk screening and hot stamping are available. Note: plastic material, good quality, reasonable price, customized shapes, colors, sizes ... ball, valve ball,sewage ball, cosmetic package,industrial ,track ball,and so on plastic roll on bottle 30ml--180ml PP,HDPE,PE ...