Feature(may vary by option.)

●Size 5G
●Cup Depth is Deep
●Rim Shape Med Wide Semi Flat
●Model No. / Depth of Cup / Approx. Cup Dia. / Rim Shape / Throat / Backbore / Description 1G / Deep / 28.00 mm / Medium thin, well rounded.
●1-1/4G / Deep / 27.50 mm / Medium thin, well rounded. / .276" / 429
●Model No. / Depth of Cup / Approx. Cup Dia. / Rim Shape / Throat / Backbore / Description 1G / Deep / 28.00 mm / Medium thin, well rounded.
●1-1/4G / Deep / 27.50 mm / Medium thin, well rounded. / .276" / 429
●Cup diameter is smaller than No.1G, but still very large and deep, with the sonority preferred by the modern American school. 1-1/4

[4GB Modern]

[5G Modern]

Description

Mouthpiece, trombone large shank, Bach silver plate, 5G cup: deep, cup Diameter: 25. 50mm.