Finis' best offering yet with regards to hand paddles. I am a swimming coach and this is a required piece of gear for my Masters Swimming program participants, especially. You can switch and work first(pointer), second(middle), and third(ring) fingers with this paddle, strengthening all parts of the hand, catch, and pull...
If you turn the paddle around, it can also be used for sculling. With no straps to dry rot, it lasts, even in a high-chlorine environment. The strategically placed holes in the paddle allow just enough flow for the user to maintain and develop correct feel for the water. The apex of the paddle is clearly defined and visible as the swimmers transition from recovery to reach and hand entry, keeping the correct part of the hand tracking and driving forward with the rotation. Again, great piece!