Take the Impact Out-Of Fitness! Get a Low Impact Comfortable Workout in the Water with Aqua-Jogger's Active-Bells Minimum Resistance Dumbbells. Aqua-Jogger Active Bells are great for Non-Swimmers and Water Enthusiasts alike. Light Resistance Hand-Held Active-Bells Tone, Strengthen, and Support your Upper Body in the Water, and when used in Combination with the Aqua-Jogger Buoyancy Belt, gives a more Complete Water Aerobic Workout. Active-Bells are great for Rehabilitation of Arm Injuries. Adjusting to your Resistance needs, their Triangular Design allows a simple Turn-of-the-Wrist, to Increase or Decrease the Water Resistance. The Triangular Design also means they won't Roll-Away at the Pool Side out of reach. The Active-Bells are manufactured from Premium Closed Cell Polyethlene with EVA Foam that won't Absorb Water, Dries Quickly, and Resists Chlorine Damage. Bells also have Soft Padded Grips for added Comfort while working out. The Aqua-Jogger Active-Bells are covered by a 90 day limited warranty.