Liar! Lose weight mainly by yourself! This instrument has some effect, but it bounces back quickly. Its principle is basically to eliminate excess abdominal fat through physical and mechanical vibration. Does that work? It has a certain effect. Abdominal weight loss equipment massages deep skin, produces thermal effect, enhances metabolism and improves blood circulation. But these similar weight-loss instruments can only play a temporary role, and they are easy to rebound. Shut up, stretch your legs and get enough sleep!