Dynamax 4 lb [DM4]

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"The DFLEX produced significant drops in my athletes 20 & 40 yard dash times after only 6 workouts."

Head Strength & Conditioning Coach
University of Tennessee

"The adaptability of the DFLEX to many training needs is one of its exceptional advantages over other techniques."

Head Women's Track Coach
Brigham Young University

"The DFLEX is a must for all athletes from youth leagues to the pros."

Linebacker - Philadelphia Eagles

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