The USA made Holton T602 features a solid, pleasing tone with positive and quick valve action. Its outstanding appearance and finish, durable construction and surprisingly professional performance all belie its price. The T602 is an excellent trumpet value. Specifications Key: Bb Bore: 11.69mm (.460") Bell: 4.8125" diameter plasma welded yellow brass Mouthpipe: Yellow brass Piston: Monel material with double-slotted spring barrel, enclosed stainless steel springs and silent one-point non-metal piston guides Slides: Brass outside and inside slides, adjustable finger ring on 3rd slide, 1st slide thumb saddle Waterkey: Tuning slide and 3rd slide Finish: Clear baked epoxy lacquer Mouthpiece: 7C Case: Deluxe wood shell