HairOilApplicatorissuitableforallkindsofessence,nutrintsolution,hairconditioner,essentialoiletc.Theence can be accurately introduced into the hair root without applying it by hand. With a 6ml liquid tank,it is enough to meet one time treatment usage. With the transparent bottle and scale line, you will know how much liquid is used and left inside, to avoid waste of liquid. It has 5 rolling ball teeth and6 auxiliary comb teeth to make it fit the scalp better and promote the blood circulation of the head. It can not only applicate essential oil to scalp but also massage to promote absorption. Easy to Clean: our scalp applicator is made of high-quality ABS and stainless steel,sturdy,durable and anti-rus. Full body washable. Regular cleaning is recommended to prevent clogging of the roller ball teeth.