automatic abdominal wheel abdominal muscle exercise rebound men's and women's belly rolling belly contracting home tool elbow support fitness equipment four-wheel

upgrade smart app interconnection + warranty for 10 years

intelligent style four-wheel four-elbow ivory white// intelligent style four-wheel four-elbow dark black// intelligent style four-wheel four-elbow white + yoga mat// intelligent style four-wheel four-elbow black + yoga mat// intelligent style four-wheel four-elbow white + sit-ups// intelligent style four-wheel four-elbow black + sit-ups// * intelligent style four-wheel white + yoga mat + sit-ups/ * intelligent style four elbow black + yoga mat + sit-ups/ elbow support upgrade extra large ink black elbow support upgrade extra large orange advanced gray blue two colors