30 ml White Rectangle Glass Bottle With Black Temperevident Dropper. These frosted white rectangle glass bottles makes your product line look at it's best and they stand out online and on the shelves. Each bottle comes with black temper evident straight glass bulb dropper . The droppers are used for dispensing small quantities of any type liquid product within these stylish white glass bottles. Perfect for industries like aromatherapy, spa, cosmetic, nutritional supplements and much more!