【Diving Level Breathable Material】Diving fabric makes it light and soft, elastic, with good heat insulation. The heating belt measures 118x20cm and comes with 2 extra straps: long belt strap: 92x8cm, extension strap: 29.5x16.5cm. The extension strap can help the heating belt cover the waist up to 147cm maximum. The self-adhesive hook and loop is super strong and stays in place 【3 Fast Heating Modes & 3 Massage Modes】Equipped with 2 red light heating plates and 2 powerful motors, it offers you both 3 heating modes and 3 massage modes to meet the actual needs of different groups of people. Low heating: 45℃, medium heating: 54℃, high heating: 65℃. NOTE: 1. Please do not use it while charging. 2. Do not use it on bare skin, otherwise it may cause burns 【Touch Screen Makes It Very Easy to Use】Long press the power button on the side to turn on/off, then the screen will light up, then you can touch the heating or vibration button to adjust the temperature or massage. The lock button is an