Feature:1. Made of high-quality durable brass material with strong wear-resistant, corrosion-resistant performance2. This trumpet mouthpiece is well-made with excellent craftsmanship to bring smooth surface3. Mouthpiece can make a clear and sweet voice, which can motivate you in music atmosphere4. A nice horn accessory suitable for both novice and professional trumpet players5. Possess high gloss and exquisite shape, which will add some elegant style to your trumpetSpecification:Name: Trumpet mouthpieceTonal: Bb toneMaterial: MetalColor: GoldModel: 3C 5C 7C(optional)Packing: BoxesWeight: 100 g / 3.5 oz(approx.)Packing Size: 95 x 30 x 30mmManual measurement, size error 1mm, weight error 5g.Package List:1 x Trumpet MouthpieceNote:Difference between mouthpieces: size and appearance are the same, the different refers to the size of the mouthpiece bowl. 7C is the most labor-saving, 3C sound is wider and the gas volume is large. If you are a beginner, you can use 7C, 7C has minimum tone, followed by 5C, 3C. The small tone is effortless, so it is best for beginners. The other 2 models are used for playing a period of time, and it is more laborious to use.