Thank you for viewing! ☆ Instant purchase available! ・ Free shipping! Colors: White / Black / Blue / Red *Please be sure to let us know your desired color when purchasing. If we do not receive a message, we will ship a random color.* Quantity: 1 Muscle Trainer: By improving breathing techniques, you can increase strength and endurance, and improve overall body performance with a focus on the core and abdominal muscles. Enhance your workout with our breathing trainer. Flexible Resistance: Tailor your training to various fitness needs and achieve optimal breathing, focus, and intensity. Optimize your workout intensity with four adjustable settings and achieve your fitness goals. Comprehensive Use: Improve your breathing game with this versatile trainer. From business breaks to outdoor training, this device helps improve lung function, build stamina, and improve cardiovascular health. Perfect for sports training, yoga, meditation, and more. Lightweight and portable. Enhanced Breathing Performance: Easily disassemble and thoroughly clean, and adjust to your preferred resistance level for maximum benefit. With the breathing trainer, you can easily maintain clean and well-maintained air while strengthening your respiratory system. Improve Cardiovascular Fitness: Consistent use of the breathing trainer leads to improved daily lung capacity and core strength. Increase endurance and energy storage in all activities.