Tri-Ball Z - Ideal for Breathing Training Purchased for post-surgery rehabilitation. Used only once, and the used mouthpiece has been discarded, so only unused spares are included. Instruction manual included. Purchase price: 4,477 yen *Please refrain from purchasing if you are sensitive to items that have been opened once. *The box will be folded and included. [Product Overview] The Tri-Ball Z is a device specifically designed for breathing training. It allows for training to improve respiratory function, and is particularly useful for rehabilitation and health management. - Model name: Tri-Ball Z - Accessories: Instruction manual, tube - Colors: Blue, White - Purpose: Respiratory device