1. Each comb tooth is of uniform size and features ball-bearing gears, ensuring even liquid discharge 2. Compact design, lightweight and space-saving 3. Clear markings for accurate dosage control 4. It can introduce hair growth solution, nutrient solution, essential oil and other medications into the application device. By gently touching the scalp, the medication is applied while also providing scalp massage 5. Shockproof and durable, suitable for long-term use 6. Large bottle opening for easy liquid addition and cleaning 7. Capacity: 1-4ml 8. Size: about 4 x 2 x 1cm
