This set is perfect for home practice, as well as for use in music schools, schools, clubs, band practice, and as a spare set for multiple users. All items are foldable, making them easy to store, carry, and set up. ■ Black 3-piece set: Almost no signs of use, in very clean condition. ■ Silver 4-piece set: Some tarnishing and dirt on the metal parts. ■ Both sets are in practical condition and can be used without any problems. ■ We do not sell items individually. ※ For Hokkaido and Okinawa, there will be an additional charge of +1000 yen for air shipping via Yu-Pack. If you are in these areas, please contact us BEFORE purchasing so we can adjust the price and relist the item.