Shigaste training mask to help boost your performance in a variety of sports. Running. Mixed arts. Yoga. Football. Basketball. Bathing. Football. Ice hockey. For those who try to increase their lungs' capacity to obtain better heart circulation and conditioning. Direction (left to right): 4.0 inch – S. 4.5 inch – M. 5.0 inch – L. What the training mask 2.0 comes with (6 air resistance caps). (3 basic pieces with flow valve pestle). (1 silicone training mask). (1 neoprene sleeve). (Brochures, fitness workout booklet / instructional brochure). [Cannot guarantee materials in English.] What about training with the 2.0 mask? "Breathing resistances" are resistors, for the "machine", i.e. how difficult would it really be to breathe at (3,000 | 6,000 | 9,000 | 12,000 | 15,000 feet | 18,000 ft in altitude resistance). What are the advantages when using the training mask 2.0 for resistance when breathing? 1. To create conditions in the lung due to pulmonary resistance. 2. Strengthens the diaphragm. 3. Improves the surface and elasticity of the alveoli. 4. Increases the lungs' capacity. 5. Increases anaerobic thresholds. 6. Reduces exercise time. 7. With 3 mouth pieces for 6 respective intensity levels: 1x, 3x, 6x, 9x, 12x, 15 x, 18x vapour safety. Package content: 1 x neoprene sleeve. 1 x silicone training mask. 6 x air resistance caps. 3 x basic pieces with flow valve pestle. 1 x brochure.
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