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Black Resistance Valves | GNC

Training Mask Black Resistance Valves

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Item # 215526
$24.99

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Size: 1 Item(s)

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Description

Training Mask’s colored resistance valves allow you to increase resistance as you build your stamina and strength.
Snap-on snap-off colored valves allow you to adjust the resistance on the go while making a fashion statement.
Make fatigue and training plateaus a thing of the past. Strengthen your diaphragm by adjusting Training Mask 2.0’s resistance valves to stimulate different altitudes. 9,000ft feel too intense? Start at 3,000 ft and work your way up!
Package includes:
    7 Resistance Valves
      3 Flux Valves
    *Mask and sleeve sold separately*

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