Description Report Item Features: 1. Enhance lung function: respiratory training device is a very effective tool that can help enhance and improve lung function. Whether you are an athlete, want to improve your vital capacity and endurance, or are recovering from the respiratory problem, this respiratory training device can help you. 2. Portable Design: our respiratory training device is light in design and suitable for use at home, in the office, in the gym or during travel. You can take proper breathing exercises anytime and anywhere. 3. Easy to use: this respiratory training equipment is simple and easy to use, suitable for all age groups. As long as you follow the instructions, you can see obvious progress in a short time. Material:plastic Color:as shown Size:13.2*4.6cm Package include:1pc Please allow minor error due to manual measurement. The colors may be a little difference for the different monitor display. #productDescription h3 { margin: 0.75em 0px 0.375em -1px; }

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