Four-Valve Low Brass Self-inking Rubber Stamp
This 4-valve low brass self-inking rubber stamp is .75 inches wide and available in black ink. The 4-valve design assists in the transition from a 3-valve baritone or tuba, to a 4-valve euphonium or tuba. The fingering chart design is made nice and crisp so that circles aren't filled in with ink when stamped. It has enough ink for approximately 5000 imprints and refill ink is available for an additional cost. Great assessment tool for beginners! A popular item for private lesson instructors!