New design: 8 training programs, 25 levels of high intensity, upgraded version of the silicone pad without replacement. One purchase, lifetime use. Application : Use for 20 minutes daily for 2 months and your abdominal muscles will be noticeably tightened. High-quality materials : The training belt is made of high-quality leather with velcro sticker design. Adjust the belt size to fit your waist. Ultra-light and ultra-thin belt that you can wear discreetly under your clothes, suitable for any scene such as gym, home, outdoor, etc.