... roll on ball and caps 2)size and color are available 3)bottle with caps plastic roll on ball and capsWe are factory ... as PP,PE,ABS,POM,PA, PMMA,and the toleranve can be 0.01mm.2.hollow ball diameter 9.5mm—100mm, it ... mainly used in the cosmetic packaging ,such as perfume bottles and deodorant ... capacity:10ml,30ml,45ml,50ml,75ml plastic roll on ball and caps