Speedster Shoulder Speed Builder?

�Athletic Trainers Top Pick

Train Proper Arm Motion using this Unique Shoulder Speed Building System

Develops strong powerful arm swing motion which is critical in an athlete's overall speed development. The Shoulder Speed Builder forces an athlete to use proper arm swing with the resistance of the Lightning Cord. A partner holds the 4’ Lightning Cords in the middle or by using the included Anchor Strap. The athlete can create either more or less resistance by stepping closer or farther away from the anchor point.

Made in the USA. Resistance Bands have been independently lab-tested and rated to last over 150,000 reps.

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