The Royal Global MAX is a revolution in bass clarinet manufacturing. Based on the Polaris bass clarinet, the MAX retains many of the professional features and acoustical designs but is manufactured from Royal's exclusive ECO material. This new material, years in the making, is a combination of mostly grenadilla powder with a special synthetic resin. It shares many of the same acoustical properties of grenadilla, with a similar density, but without the risk of cracking or dimensional movement. The added dimensional stability and durability makes the MAX bass clarinet the premium choice for those who perform in a variety of environmental conditions whether it's the classroom, pit orchestras, the parade block or the marching field.