Feature: 1. Three‑gear temperature control technology, thermostat automatically cuts off the power supply to ensure safety. 2. Intelligent temperature control, 4‑row cable design, and outer layer is 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 to the comfort level. Specification: Condition:100% Brand New Item Type: Hair Heating CapMaterial: PU+PVC linerSize: Approx. 23 x 17cm / 9.1 x 6.7inGear Adjustment: Three gearsFeature: 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 more effectively absorb nutrients, shorten the dyeing time, color firm and evenly, improve the quality of dyeing, and maintain the damage after perm Hair quality, fast heating, intelligent temperature control, waterproof inner liner, bright color.Instruction: 1. Wash your hair clean with shampoo, don't use conditioner, otherwise the hair scales will be closed; 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 the hair with plastic wrap or shower cap or thin towel; 4. The 3rd gear heating cap can be borrowed for 5 minutes after resisting it for 5 minutes. It can be used after preheating for a few minutes in winter;5. After finishing treatment, wait for the hair to cool completely, wash the hair with warm water and heat the inner pot of the cap; 6. If you feel that your hair is not smooth enough, you can use the conditioner again.. Package List: 1 x Electric Heating Cap Note: Please note that the switch appearance/zipper color of this product will be sent randomly, please make sure you don't mind before ordering.