The Royal Global Polaris clarinet features a unique poly-cylindrical bore design that offers a warm, resonant, colorful sound and responsive feel throughout all registers. Silver plated keys, gold plated posts, alternate Eb/Ab lever, and one patented Polaris adjustable barrel (64-68mm) all come standard on Polaris model clarinets. Manufactured from premium, naturally aged grenadilla wood, the Polaris clarinet will feel like home for those who prefer some of the more widely used "French" bore clarinets.