This black tamper-evident cap and orifice reducer fits on bottles with an 18mm style top. The orifice reducer is natural in color and designed to dispense liquid one drop at a time with a .040" orifice. One set includes one cap and one orifice reducer. This is often used as a closure top for liquid products intended to be dispensed in small drops.
Diameter: 0.875" Top Size: 18 mm