The Bach 1845 Stradivarius Bass Trombone Case is the manufacturer case that comes standard with all Model 50 Series Bach Strad Trombones. The Bach 1845 Case will fit al traditional rotor Bach models plus the 50T Thayer Valve Bass Trombone. The Bach 1845 Stradivarius Bass Trombone Case features a durable wood shell construction with a scuff-resistant vinyl plus brass-plated hardware with lockable latches. The 1845 case also features a deep plush covering with padding designed to offer fully nested protection of the instrument.