The Premium line flightcases all excel in the materials used. 9 mm high grade plywood, combined with Penn-Elcom hardware and CNC machined foam interiors to keep the Infinity Furion units safe during handling, rigging and transportation form the combination every rigger or rental company is looking for. Dedicated case for 2 units of Infinity Furion S401 and, as a small extra, including 1 pcs of the Infinity Stage tool to make rigging life a bit easier.