Fitness enthusiasts, expand your lungs with this Respiratory Breathing Fitness Resistance Exerciser. Designed to help you breathe better, this device is perfect for those looking to improve their respiratory fitness. With its sleek black and white design, it's easy to use and store. Measuring 7.17x4.37x1.46 inches, this breathing trainer is lightweight at just 0.18 pounds. It's perfect for outdoor sports enthusiasts and climbers alike. So, whether you're looking to improve your respiratory fitness or just want to breathe better, this device is perfect for you.