Greg Black 1G Heavy GP Greg Black Bass Trombone Mouthpiece Gold Plated Heavy Weight ★ Cup Inner Diameter: 29.00mm ★ Cup Depth: Deep Throat: Standard ★ Only tried once after purchasing used. Heavy type gold plating is a rare item with limited availability. (Original plating) * Case not included. Will be shipped with cushioning material (bubble wrap) packaging. The short shank and body weight provide a tight sound. The playing feel is also heavy, recommended for those who want to increase the resistance of a 1G size. The gold plating is in relatively beautiful condition with no noticeable peeling. * Due to frequent requests for price reductions, this item is offered "without price reduction". Thank you for your understanding.