2PCS Breath Trainer Portable Silicone Breathing Exercise Device for Lungs

Adjustment Respiratory Trainer: The lung trainer made of food-grade silica gel and ABS,with adjustable resistance valve,the resistance can be adjusted by rotating left and right. Portable Size: The breath strengthening device is 1.97*3.94*1.18 inch,small size,light weight,easy to carry,and can be used at any time. Multi-Functional Breathe Trainer：This breathing resistance trainer suitable for suitable for all kinds of exercise activities,such as running,swimming,yoga and martial arts.Through this lung capacity exerciser,improve the strength and endurance of respiratory muscles and enhance physical fitness. Widely Applicable:The breathe trainer both indoor and outdoor can be used,such as outdoor running,gymnasium,fitness center,yoga room and so on. Customer service:If you encounter any problems after receiving the lung strengthening device,please contact us in time.We will reply to you and solve the problem for you.