Function: 1. Three-speed temperature control technology, thermostat automatically cuts off the power supply to ensure safety. 2. Intelligent temperature control, 4-row cable design and outer layer made of silicone material. 3. The outer layer of the heating cap is made of PU fabric, which is thick, durable and easy to clean. 4. The liner is thickened, waterproof and insulated, removable and washable, convenient and practical. 5. The elastic rope can adjust the size of the cap mouth, you can adjust it according to the comfort level. Specification: Condition: 100% Brand New Item Type: Hair Heater Cap Material: PU + PVC liner Size: Approx. 23 x 17 cm / 9.1 x 6.7 inches Gear setting: three gears Feature: Hair care at room temperature, most of the nutrients are lost and it is not easily absorbed by the hair. Using a heating cap can absorb nutrients more effectively, reduce dyeing time, dye firmly and evenly, improve dye quality, and maintain post-perm damage / a> Instructions: 1. Wash your hair clean with shampoo, do not use conditioner or the hair scales will close; 2. After shampooing, wipe the hair half dry and apply the hair mask on the hair; 3. After gently massaging the hair for a while, wrap it with plastic wrap or shower cap or a thin towel; 4. The heating cap of 3rd gear can be borrowed for 5 minutes after 5 minutes of resistance. It can be used in winter after preheating for a few minutes; 5. After finishing the treatment, wait until the hair has cooled completely, wash the hair with warm water and heat the inner pot of the cap; 6. If you feel that your hair is insufficient, you can use the conditioner again. Package list: 1 x electric