Doug Elliott Tenor Trombone Mouthpiece. Rim - LT 101 similar to Bach 5G, Schilke 51, Wick 5AL, Remington (25.65mm)Cup - LT G medium-deep, best for all symphonic trombone playingShank - 8 - standard large shank backbore, best design for most trombonesNote: Brand new list price on Doug Elliot website is $260.00