100ml Essential Oil Dropper Bottle for essential oil and fragrance 1)Height:112mm 2)Dia:45mm 3)Neck size:18mm 4)Weight:88g An essential oil is a concentrated hydrophobic liquid containing volatile aroma compounds from plants. Essential oils are also known as volatile oils, ethereal oils or aetherolea, or simply as the "oil of" the plant from which they were extracted, such as oil of clove. An oil ...