Thank you for viewing! ^ ^ With 11 years of experience in creating breath builders, I offer an original design with two holes, providing significant resistance and receiving high praise from many brass bands (and other musical groups)! * If the resistance is too strong, please cover the hole on the right side of the mouthpiece with your finger. The acrylic pipe connecting the main body and the blowing hose is attached with acrylic adhesive, allowing for hose removal and cleaning, ensuring hygiene! If you wish to purchase multiple items, please refer to the following: * For single item sales, we offer a special price of 715 yen (originally 1299 yen) for those who want to try it out. However, for bulk purchases of 2 to 9 items, the unit price is set between 893 yen and 898 yen. (For purchases of 2 or 3 items, shipping via Yu-Packet Plus is available for 455 yen, but for purchases of 4 to 10 items, shipping via Rakuraku Mercari's Takkyubin 60 size will be used, with a shipping cost of 750 yen.) If you purchase a maximum of 10 items at once, the price will be 10,000 yen (unit price 825 yen). We welcome immediate purchases, questions, and comments! #BreathBuilder #BrassBand #Diet #Training