The smart training tool arena Freeflow Pullbuoy II is perfect for improving body position in the water. This updated version of the classic pullbuoy offers more stability, durability and greater buoyancy. It can be used for strength, endurance or stroke technique training. The hydrodynamic 8-shape does not slow down in the water. It positively influences water flow and reduces friction. With a soft surface and curved edges for extra comfort. PVC free.