Shoulder strap included ☆ Backpack band, common for 27-key, 30-key, and 32-key models. ☆ Brand new, unopened ☆ ☆ Immediate purchase OK ☆ ☆ Although new and unused, it has been stored for a long time, so please understand ☆ Sold as is. Since it's unopened, I don't know which instrument it's for. - Model: 27-key, 30-key, 32-key common backpack band - Manufacturer: Tombo Musical Instrument Manufacturing Co., Ltd.