The respirometer is quite a simple instrument that consist of different tubes and two or more balls inside, that will move up according to how we inhale.Very simple to use, yet very effective. Used properly and regularly, the Breath Builder will increase the amount of air you inhale and can use in a wind instrument. It will enable you to increase the volume and pressure of air you use while playing. This should result in increased volume and greater control.At all times, attempt to take in and expel the largest amount of air you possibly can. This will often entail using your abdominal and some other muscles more complete than you ever have before.Features:1. Breathing exerciser: Innovative system to exercise respiration through inspiration.2. Solid, non-shaky single piece construction; 3 chambers for differing inhalation rates.3. Device is composed of Base and central part divided into three chambers containing three small spheres different in colour.4. Three spheres rise proportionately to the inspiration exerted by the user. Innovative design, can be dis-assembled into parts for cleaning and disinfection.5. Complete Instructions Provided. Helps achieve optimum lung capacity and restoring disrupted breathing patterns.6. Specially designed with 3 stage chambers to provide more efficient exercise to patient at a step up basis. 600 ml/cc, 900 ml/cc, 1200 ml/cc.7. Made of high quality break-resistant plastic, safe, odorless and harmless.How to use:1. Put the "Mouth Piece" in your mouth, inhale slowly, allowing the ball to rise. 2. Try sucking longer gas, allowing the ball to rise and try to keep the sphere's scale up for 2-3 seconds 3. Release the "Mouth Piece"slowly and adjust the breath after taking a deep breath. 10-15 times each group.Specification:Item Type: Breathing ExerciserMaterial: PlasticItem Color: As Pictures ShownPackage Weight: Approx. 185 g / 6.5 ozPackage Include: 1 * Exercise Main Body1 * Pipe1 * Mouth Piece1 * ManualNote:1. The real color of the item may be slightly different from the images shown on the website caused by many factors such as your monitor brightness and brightness of the light.2. Please allow 1-2 cm error due to manual measurement. Please make sure you do not mind before you bid.