Vincent Bach 1G Pink Gold Plated, Large Shank Bass Trombone Mouthpiece ★ Cup Diameter: 28.0mm ★ Throat: 8.1mm The largest cup diameter in the Bach lineup, easily compatible with modern, powerful instruments. ★ Newly silver-plated with pink gold plating. (Purchased September 2025, 51,100 yen (tax included)) ★ Used for a few play tests. Currently, the price of pink gold plating is high due to the rising price of gold. * Although the price is set relatively high, if you prefer to acquire this at a lower cost than ordering new plating, please consider this item.