with black PU material, vibration, heating function, it have five model, you can use it at different speed and strenghth. This model belt massager has a scale, we can test the effect every week, user can see the scale when the waist(or other body places) slim. The belt massager has a self protected function, when the time exceeds 10 minutes, the machine will automation stop so that user won'r use it exceedly. This model has an beautiful remote control board, they have stable control function. The belt massager is with one handbag, so user can take it easier.