Vandoren M/O Alto Saxophone Ligature - Gold platedCombines the lightweight construction with highly efficient tightening. Vandoren M O Series ligatures combine the lightweight construction of the legendary Masters Series ligature with the highly efficient tightening of the OPTIMUM Series ligature. Thus, the M O ligature allows an optimum vibration of the reed for crisp articulation. M O Series Saxopone Ligatures are available for soprano, alto, tenor and baritone saxophones in gold, and aged gold.