Clear 1oz Boston Round Glass Bottles with Child Resistant Droppers 30ml. Clear Glass Bottles with Child Resistant Glass Droppers! Use these bottles to store and accurately dispense tiny amounts of fluids. The dropper is made of glass, so it won’t interact with oils or chemicals. They’re perfect for storing and dispensing medications, vitamins, rubbing alcohol, food coloring, liquid sweeteners, dyes, or essential oils. Dimensions of (bottle): 1.25″ width x 3.25″ height. Total overall height with bottle and dropper: 4.