SANUME Breathing Exercise Device,Diving Breathing Exerciser-diving Mouthpiece Holder, Exercise Device Silicone Lung Health Exerciser

Features: ●It helps to expand and improve your lung capacity without having to do a ton of cardio and risk burning calories. ●Breathing Exercise Device Airway muscle trainer, treat the airway trainer as a lung fitness center. Exercise the lungs and respiratory muscles to improve lung capacity and endurance. ●Lung breathing trainer is extremely compact. With this device, perform your daily training wherever you are. Specification: -Color:As shown. -Material:Silicone -Product size:3.7x2.1inch -Weight:70 g Package Include: 1 x Breathing Exercise Device

Breathing exerciser Improve vital capacity Comfortable to wear Adjustable resistance plate