Enjoy your favorite essential oils on the go! Our blue glass roller ball bottles are designed to eliminate pesky leaks and drips while dispensing oils directly on your skin. These refillable bottles are also great for creating your own aromatherapy blends. Blue glass keeps oils protected from light. Metal roller ball tops. Each bottle holds up to .3 oz. Containers measure .75 x 3.25 inches. 8 blue glass roller ball bottles per package.