PINLYNE Pure Silicone Breathing Trainer | Lung Capacity Enhancer & Ab Exerciser breathing trainer  (Black)

Adjustable Resistance :- This exerciser device rotates left and right to increase or decrease the appropriate resistance intensity. You can easily modify the device to suit your individual needs. Daily Exercise :- This breathing exercise device helps improve your fitness, strengthen your muscles, and practice stress management. Portable& Convenient :- The trainer for athletes compact size allows it to be carried in your handbag or pocket easily. So with this exercise device, perform your daily training wherever you are. Easy to Use :- Lightweight and simply designed with high-quality flexible silicone mouthpiece and durable ABS handle, which can provide comprehensive muscle training for different users. Versatile :- It's suitable for various people such as track and field, running, swimming, gymnastics, martial arts, and outdoor activities. This well-built muscle trainer is perfect for improving exercise endurance.