Silicone Breathing Exerciser | Portable Lung Training Device with Adjustable Resistance collar Keep away from children under

Keep away from children under 3 due to small parts inside

Use it for weight loss

It stays put on vertical surfaces

It has the same dimensions and connection points

The infinite Rubik motion keeps your hands busy

Silicone Breathing Exerciser | Portable Lung Training Device with Adjustable Resistance collar Keep away from children underShort Summary For those who want to improve lung capacity and breathing endurance, this silicone breathing exerciser features an adjustable resistance dial. The portable device helps expand vital capacity without intense aerobic exercise. Product Description Strong breathing muscles improve athletic performance, reduce shortness of breath, and support overall health. This silicone breathing exerciser provides adjustable resistance to challenge your