TheraBand Water Weights, Set of Aquatic Hand Bars for Pool Fitness, Dumbbell Weight with Padded Grip, 2 Foam Weights for Water Aerobics, Therapy, Workouts, Pool Exercise Equipment, Aqua Training, Blue, Heavy, Advanced Great tool for aquatic physical therapy, hydrotherapy, and pool fitness and to increase range of motion in the upper and lower extremities Increase flexibility in the back and strengthen the lower back, abdominal muscles and obliques with exercises like water walking, rowing and push downs Ideal for elbow and shoulder flexion and extension, 6 pounds of force needed to submerge Fun accessory and water exercise equipment for aqua Zumba, water aerobics or general pool workout activities Available in three resistance and buoyancy levels to match user need - Blue, Heavy is 15" X 4", comes in a pair