High-quality material: The lung breathing trainer is made of high-quality silicone material that is odourless, healthy and environmentally friendly. During use, it comfortably adapts to the shape of your mouth, ensuring a pleasant wearing experience while also ensuring the safety and health of the user. Easy to carry: With its small, lightweight design, the lung breathing trainer is highly portable, making it ideal for athletes, singers, smokers and anyone looking to strengthen their respiratory muscles. By training with this device regularly, you can improve your breathing capacity, increase your resilience and feel better overall, day in and day out. Easy to use: Using the lung breathing trainer is simple and effective. Begin by inhaling slowly and deeply through your mouth, then hold your breath for 5 seconds before exhaling slowly through your mouth until the air runs out completely. Repeat this cycle 10-15 times per session and do a total of 2 to 4 sets per day for optimal results. Increase lung capacity: The lung endurance trainer is designed to reduce the build-up of waste products in the body while significantly increasing lung capacity. Targeted training strengthens the respiratory muscles and improves the overall function of the lungs, resulting in better oxygen absorption and increased physical performance. Wide range of applications: breathing exercises for the lungs offer a variety of health and fitness benefits. They improve athletic endurance, increase lung capacity and optimise cardiorespiratory function. They also help to reduce shortness of breath, relieve stress and improve sleep. Specifications: Weight: 0.073 kg Material: silicone, ABS Applicable scenarios: running, sports, fitness, body beauty