XTRA - SWIM TRAINER POWER CORDS

Power cords are designed to engage sooner than the stretch cords, providing greater resistance for a longer range of motion. Power cords are best used for developing power, for leg exercises, and for increasing resistance while doing freestyle with the pulley cable system. 5-10 lbs stretch cord comes standard on all model Vasa Trainers - This is a Set of 4 different Power cords to add more resistance to training! superlight powercord (green) 6-16 lbs lite powercord (red) 7-23 lbs medium powercord (blue) 9-28 lbs hard powercord (black) 12-38 lbs