About this item 【Clear Scale】The scalp applicator comb has clear scales from 1ml to 3ml to ensure precise liquid dispensing and avoid the problem of liquid waste or excessive dosage. 【With Suction Cup】The bottom adopts a suction cup design, which not only avoids liquid leakage, but also allows the comb to be placed on the desktop for easy use at any time and saves space. 【Even Distribution】The rolling ball allows the liquid to be evenly distributed on the scalp, preventing local concentration from being too high or too low, thus improving the care effect. 【Scalp Massager】There are 5 rolling balls at the bottom of the comb, which can massage the scalp, promote blood circulation, accelerate drug absorption, and improve drug effects. 【Relieve Pressure】The comb can be used at home and in beauty salons to relieve head fatigue and pain, help release stress and relax the body and mind, so that you can feel comfortable and happy.