1、Three‑speed temperature control technology, the thermostat automatically cuts off the power supply to ensure safe use. 2、Intelligent temperature control, 4‑row cable design, outer layer 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 inner tank is thickened, waterproof and insulated, removable and washable, safe, convenient and practical. 5、The elastic rope can adjust the size of the cap at will, and you can adjust it to the comfort level you want. Condition:100% Brand New Item Type: Electric Heating CapMaterial: PU+PVC liner Size: Approx. 23 x 17cm / 9.1 x 6.7in Gear Adjustment: 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 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 3-speed heating cap can be used for 5 minutes at low level and then about 5 minutes at high level. In winter, it can be preheated for a few minutes before use; 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. 1 x Electric Heating Cap (Zipper Color Random)