The Ultimate Bundle combines the Maximum Resistance Total Body System (Blue Bell/Fins) along with the Aquastrength Blue Barbell - Combining the aquatic bells and fins together will give you a dynamic full body water workout for fitness and conditioning and also a fuller range of motion, stabilization and coordination for injury recovery and rehabilitation. The bells give you a dynamic hi intensity low impact cardiovascular aquatic workout while engaging the upper body, arms and core that strengthens, builds and tones the muscles. The lower body aquatic Fins effectively tone, sculpt and strengthen your core muscles, legs and buttocks. The Aquastrength Barbells unique design allows the user to perform a multitude of exercises that focus on dynamic flexibility, upper body, core strength, coordination, balance, rotary stability, power, agility and endurance. The Barbell has one Aquastrength Bell attached at each end to provide multi-directional resistance in the water. This is must have equipment if your are doing pool workouts.