Tiger plastic Trombone PTR-03 Lightweight, anti-drop;lacquer finish;gigbag ABS plastic Stainless steel valve core Bore size: 13.9mm; Bell size: 216mm; Mouthpiece: 5G plastic; Valve: 1 rotary; Slide: carbon fiber; Key: Bb/F Import duties or brokerage fees(if necessary) are not included in the item price or shipping cost. These charges are at the buyer's responsibility.