... are available 3)bottle with caps plastic roll on ball and capsWe are factory that specialize in manufacturing:1.plastic ... material ,such as PP,PE,ABS,POM,PA, PMMA,and the toleranve can be 0.01mm.2.hollow ball diameter ... , it mainly used in the cosmetic packaging ,such as perfume bottles and deodorant bottles ,also can used in sewage disposal ,float ... 10ml,30ml,45ml,50ml,75ml plastic roll on ball and caps