This is the Gator GL-TRUMPET-MUTE. A part of their Lightweight Polyfoam Band & Orchestra Cases Range. It is a Rigid EPS Polyfoam Lightweight Case for Trumpet with Mute Storage. Lightweight Rigid Nylon Case with Plush Covered Dense EPS Foam Interior. Features include - Internal Space for Two Mouthpieces, Large Storage Compartment for Horn Mutes, Fits Max Diameter Bell Size Up to 5.5 Inches, and Interlocking Comfort Grip Handle.