Sell (all101)Training Mask 48 Levels Workout High Altitude Elevation Simulation Sport Mask best price

(all101)Training Mask 48 Levels Workout High Altitude Elevation Simulation Sport Mask Features: 1. Enhance endurance: suitable for athletes who want to improve endurance, vital capacity and overall performance. 2. Sturdy material: Unisex mask of universal size, equipped with ultra-durable plastic front cover. 3. Train your lungs: Our hypoxia mask can train your breathing pattern and increase your lung capacity. 4. Change resistance: easily switch resistance during exercise, 48 levels are adjustable, no need to take off the mask. 5. Exercise: Make exercise more effective by simulating high altitude, it will force you to breathe fully and deeply, thereby strengthening your diaphragm and respiratory system. Description: Exercise mask can provide energy for any exercise, suitable for gym, running, cycling or aerobic exercise. Specifications: Material: spandex, polyester, silicone Level: 48 levels Applicable object: Adult Package Included: 1 * sports mask Notes: 1. Please allow 0-1 inch error due to manual measurement. Thanks for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from real object.