【Adjustable Resistance Level】---The resistance valve is simple to adjust to meet different needs for achieving greater results
【Improves Overall Performance】---This well-built device is great for improving exercise tolerance and enhancing your performance day by day. Good choice for athletes, singers, smokers, etc.
【Easy to Clean and Use】---Simplicity of design. Sealed tight in an individual package. Easy cleaning and storage.
【Daily Improvement】---You can see the changes with regular use. Better function and better support. Nice addition to your training program or workout routine.
Specifications
Model Number
HY0089
Lung Breathing Training Device, Sports Breathing Trainer Silicone Hypoxia Training Device Endurance Training Portable Breathing Apparatus Fitness Trainer For Runners, Athletes, Sports Lovers