Bulb Type, Black Nitrite.
Nitrite droppers are more durable than the red Rubber top droppers, especially for Essential Oils such as Lemongrass which degrade the bulb. This dropper fits 50ml, 100ml and 200ml Amber Bottles.
TIP - for a longer life of all droppers, squirt any oil remaining in the dropper back into the bottle and then screw lightly back on.
Note: on a 200ml bottle, the dropper does not reach the base, you just tip the bottle on an angle to draw up the last of the contents. The very long, glass dropper tube required does not travel well in the post - we do not stock any other dropper closure.