Incentive Spirometer

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Device for exercising breathing through inhalation. The device is composed of: 1 base 3 balls of different size and color (red, yellow and green) 1 transparent body with three room s 1 tube with mouthpiece How to use: Raising two or three balls deep inspiration by following the directions of specialists, hold your breath for as long as possible and exhale after removing the mouthpiece. Show more