Type-B Euphonium Hand Strap Brand new, unused. Type-B is compatible with euphoniums such as Besson. It also works with trigger models. By attaching this, the burden that tends to fall on the right hand is distributed across the entire back of the left hand, making long hours of playing possible. It is especially recommended for those with small hands＾＾. The part that touches the back of the hand has cushioning material, so it is less tiring even after long hours of use. Please refer to the photos for how to attach it.