The Sonor Orff SMART series alto Meisterklasse metallophone employs market-leading innovations in sound functionality and design. Elevate your performance with its enhanced tone developed through acoustical research and innovative resonance chamber designs. Built with portability in mind the SMART alto Meisterklasse metallophone makes teaching easier both in and out of the classroom. With an innovative bar-mounting pin and unique resonator box design it can be easily stacked to maximize storage space. Students experience improved ergonomics with the integrated riser elevation.