Description:

Breathing exerciser: helps to increase lung capacity and is a breathing trainer or breathing trainer that improves lung strength and capacity.
Function: Oxygen Intake, Reduce Shortness of Breath, Improve Shortness of Breath, Strengthen Lungs: Inhale/Exhale.
Adjustable: Adjust the breathing resistance by manual rotation, suitable for training in different occasions.
Application: Specially designed for athletes, pilots, singers, , etc.
Versatile use: Made of reliable quality, durable silicone. Suitable for swimming, diving, running, fitness, cycling and many other occasions.

Specification:

material: silicone

Size Chart:

10cmx5cmx3cm/3.94inchx1.97inchx1.18inch

Package Includes:

1 Breathing Exercise Device

Note:

Please allow slightly errors due to manual measurement and different monitors.