101G
The 101G is similar in size and playing characteristics to a Bach 5G or Schilke 51. It is our most popular symphonic trombone mouthpiece. The 101G has an ID of 1.01 inches, a .280 throat, and is available with a small or large shank.
101GS
The 101GS is similar in size and playing characteristics to a Bach 5GS, DE 101F, Yamaha 51B, Schilke 51C4 or Wick 5ABL. The 101GS has an ID of 1.01 inches, a .270 (.686mm) throat, and is available with a small or large shank.