3 ml Blue Glass Roll On Vial With Black Cap

3 ml Blue Glass Vial Comes With Steel Roll On Ball & Black Cap. The black polypropylene cap gives these blue glass roll on containers the unique look, without the added cost. Matching this black cap to your choice of either amber glass or blue glass roll on container makes for an unique product. At the top of the glass container, the tiny steel ball rolls smoothly as it dispenses your product.