Daiwa Rodeo Core Compact Exercise Equipment For Home Workouts – Full Body Fitness Machine Targets Abs, Legs, & Butt $269.00 Make sure this fits by entering your model number. Rodeo Core abdominal exerciser uses a forward and backward motion to make any ab workout fun. 10 mins=100 Sit Ups! For a flat stomach, use each day in combination with a healthy diet.