Ab Rocket Twister Abdominal Trainer & Mini Tool Box (ml) Abdominal chair designed to work upper abs, lower abs, and obliques Backrest includes padded massage rollers that pivot with your body Padded swivel seat twists and turns with your lower abs for core strengthening 3 resistance levels: yellow (low), blue (medium), and red (high) Comes with 4 fat-blasting DVD workouts and low-calorie meal plan