Hair Growth Serum Applicator This mini massager can relieve fatigue and headaches caused by tension and stress. Use a scalp massager, gently massage without hurting the scalp, stimulate blood circulation in the head, promote good sleep, and be refreshed. Perspective window, precise scale, drug guide, durable, easy to clean, massage scalp Large bottle mouth, easy to add liquid and clean. he roller teeth can adjust the application pressure, and the smooth liquid flows evenly on the hair roots, and it can also gently massage the scalp to accelerate the absorption of the liquid. The palm-sized fit and compact size design provides a comfortable and secure grip, and the bottom cover helps protect the comb teeth from dust for improved hygiene. Saff materials Made of high quality stainless steel, silicone and ABS safety materials, there is no odor, so you can use it with confidence. The water tank cover is designed with a soft silicone bottle cap, which can be pressed to speed up the liquid discharge, and the lifting ear design makes it easy to remove the cap and add liquid. 40ml large capacity The inner diameter of the filling port is 40mm, the maximum capacity of the liquid container is 40ml, with a 16mm filling hole, which can quickly add liquid, avoid the trouble of frequent replenishment, and is sealed and leak-proof, practical and convenient. 14 elastic ball liquid discharge teeth 14 elastic ball liquid discharge teeth, press the liquid, even and smooth, clean and hygienic, directly to the scalp. 7 auxiliary plastic comb teeth, which can massage the scalp while applying the medicine, promote the absorption of the medicine liquid, apply it evenly, and the effect is good. Easy to clean The whole machine can be washed with water, which is convenient for product cleaning and care, without worrying about liquid solidification, it is clean and hygienic after repeated use. The protective cover is dust-proof and dust-proof, which is used to protect the comb teeth of the guide comb to be clean and free from dust. Saff materials 40ml large capacity 14 elastic ball liquid discharge teeth Easy to clean Conditioners, essential oils, nutrient solutions, and other liquids can be added.