Meet the StretchCordz Stationary Swim Trainer (S121): an in-place resistance swim training device that helps you train proper hip rotation and strokes. It can be used to train multiple swimmers in one lane at the same time. It also makes life easier for coaches as they fix positioning and stroke technique.
More gadgets like this ➡️ : here
You can use this swim trainer in your home swimming spa too. More information is available here.
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