Watch this On You tube video : Under : aquasharkfins
Strengthens, tones and firms the upper body with low impact. Shark fins work with the resistance of the water. The slower the motion in the water, the least resistance. The faster the motion in the water, the harder the resistance. The best part is, you work at the pace that fits you. Have fun in the water and watch your body change. The ultimate upper body aqua workout
Extreme cardio, upper body, arms, chest and shoulders
Also works great for physical therapy. Definitely not your Grandma's water weights