1、Three‑speed temperature control technology, more temperature options, thermostat automatically cuts off power supply, to ensure safe use. 2、Intelligent temperature control, 4‑row cable design, outer layer of silicone material, thick waterproof insulated inner tank, removable and washable, safe and convenient. 3、Outer layer of heating cap is made of PU fabric, which is thick, durable and easy to clean. 4、Inner tank is thickened, waterproof and insulated, removable and washable, safe, convenient and practical. 5、Elastic rope can adjust the size of the cap at will to adjust to the comfort you want. 1 x Electric Heat Cap(Switch type random) Condition: 100% Brand NewItem Type: Electric Hair CapName: Heating CapMaterial: PU+PVC LinerSize: Approx. 23 x 17cm/ 9.1 x 6.7inVoltage: CN 220VGear Adjustment: Three GearsFeatures: Hair mask is treated at room temperature, most of nutrients are lost, and it is not easy to be absorbed by hair. Using a heating cap can more effectively absorb nutrients, shorten dyeing time, color firm and uniform, improve quality of dyeing, and maintain damaged perm Hair quality, fast heating, intelligent temperature control, waterproof inner liner, bright colorInstructions: 1. Wash your hair clean with shampoo, don't use conditioner, otherwise hair scales will be closed 2. After shampooing, wipe hair half dry and apply hair mask on the hair 3. After gently massaging hair for a while, wrap hair with plastic wrap or shower cap or thin towel 4. 3-level heating cap can be borrowed for 5 minutes after 5 minutes of resistance. It can be used after a few minutes of preheating in winter. 5. After finishing treatment, wait for hair to cool completely, wash hair with warm water and heat inner pot of cap. 6. If you feel that your hair is not smooth enough, you can use conditioner once.