DN2091WX is a white Non-Child Resistant Certified dropper with a ribbed skirt, rubber bulb, and glass pipette with graduated markings. This dropper has a 91mm dropper and has a neck size of 20-400. This dropper fits on 2oz (60ml) Boston round bottles. This dropper is perfect for essential oils, e-liquids, pharmaceuticals, fragrances, and other liquids.