Iron Crush Workout Mask


Workout training improvement mask.

Strengthens respiratory muscles and improves lung capacity.

Robust reinforced stitching protects from fraying and breaking.

Comes wonderfully packaged with manual and accessories.

Improve your performance with this workout mask.

Stimulates altitude training, strengthens respiratory muscles, and increases lung capacity.

Has 24 resistance levels; you can build up resistance levels to improve your workout.

Customize your resistance levels to suit and improve your respiratory muscles.



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