funtasica Lung Trainer Increase Lung Capacity Breathing Dumbbell for Travel Gym Adults blue.This portable breathing is designed to enhance lung capacity and improve breath control, making it suitable for a wide range of usersMade fromsilicone with a user friendly structure, this Lung Capacity Exerciser ensures smooth and comfortable useWith its lightweight design, this Breathing Exerciser is easy to carry and store. Whether at home, in the office, or on a business trip, you can conveniently perform breathing exercises anytime and anywhere to continuously improve lung function and overall healthThe Breathing Dumbbell can be used in various positions sitting, lying down, or standing making it easy for both adults and children to engage in breathing exercisesLung with five adjustable resistance levels (20g each), allows you to customize the intensity according to your fitness level and training stage. It caters to both beginners and advanced users, helping you gradually strengthen your respiratory musclesBreathing Exercise Device for Lungs Easy Use. Deep Breathing Muscle Workout Tool. Lung Face and Core Strength Equipment. Lung Capacity Exerciser with Two Mouthpieces. Abdominal Breathing Fitness Equipment portable.