These Gorgeous Cobalt Blue, Essential Oil Bottles, Mini, tiny 1/4th dram sized glass bottles with Orifice Reducers and Black Caps are perfect for holding almost any liquid. Each Comes with a snap in plastic orifice reducer, and a silver, lined plastic cap. perfect for essential oil storage and drops. They Measure 3/8" wide by 7/8" tall. and Hold 1/4 Dram of oil. about 1ml of liquid.