This 15ml amber (brown) color Essential Oil Dropper bottle is a popular choice for essential oil, fragrance, and other personal care liquid products. Pairs with tamper evident plastic screw caps with vertical dropper inserts. The drop drips centrally from the drop pipe that is set in the middle and doesn’t touch the rim. The air pipe is positioned at the side. The drop speed and the drop size and/or weight depend on the diameter of the drop and air pipes as well as on the consistency of the fluid. You can easily identify a Vertical Dropper by the ‘long’ air pipe on the side of the component.