RBX Fitness Cardio Hoop (Green) Slim down your waist while having fun with a RBX Cardio Hoop Shake up your fitness routine - circular movements reshapes your midsection area and builds your abs Also improves your balance and posture, increases coordination and improves flexibility Works more than 30 core muscles to sculpt abdominals, builds and strengthens muscles, improves balance, flexibility, and cardiovascular health Color: Green (More Colors Available)