2 Pcs Silicone Lung Exerciser and PVC Mucus arance with 3 Balls Set, Handheld Deep Breathing Exerciser, Portable and Adjustable Breathing Trainer for Sports Lovers, Athletes(Black, White)

【Set Contains】The lung exerciser set includes 1 pcs silicone lung exerciser and 1 pcs PVC mucus clearance with 3 balls. Gives you two different breathing exerciser styles to choose from when exercising. 【Improve Respiration】Use our lung exerciser for improving your respiratory health.This lung exerciser device not only enhances respiratory function, but also acts as a vital breathing trainer to propel you to optimal breathing. The breathing trainer enhances respiratory strength and control, increases anaerobic threshold and raises the limits of exercise. 【Useful Design】The trainer has a rotary valve that allows unlimited up and down multi-resistance adjustments to change the amount of breathing resistance. And it is compact and lightweight, easy to carry and disassemble for cleaning. 【Easy to Use】Start by inhaling slowly through your mouth, as deeply as possible. After holding your breath for a few seconds, slowly exhale through your mouth until you have completely exhaled. 【Widely Applied】Deep breathing lung exerciser is small and portable,and can be used for adults, seniors, children, sports lovers, athletes, singers and so on.