Perfume Studio Aromatherpy Roll On Blue Frosted Cobalt Bottles with Metal Ball Applicator/White Caps - 5 Units, 10 ml/.33 Oz. Perfume Studio Aromatherpy Roll Ons - Blue Frosted Cobalt Bottles with Metal Ball Applicator - 5 Units, 10 ml/.33 Oz. Specially Designed For Body and Essential Oils Refillable Roll On Bottles Long Lasting