Designed to assist the left hand in holding the euphonium with minimum grip required. Allows the left hand to be more relaxed while playing in either standing or siting position. It can be used by either students or professionals. The Euphonium Hand Strap provides a lower pivot point for the total mass of the instrument.

Features:

•  non-bulky
•  strong & secure
•  soft, absorbent, washable (100% cotton twill)
•  fully adjustable to fit different euphoniums and hand sizes
•  fits inside case w/o needing to be removed for storage
•  no need for professional installation, no damage to your horn
• Made in the USA.

Copy and Paste to your browser, Link to unsolicited review from Dave Werden

 https://www.youtube.com/watch?v=3rk7Qc4wKYo