Description They are professional trombone which are not easy to deform, durable and practical to use for. With good working performance, these trombone are proper for students, professional trombone players and beginners, can help your trombone have a good sound, fit your demands.-mouth piece Features -Color:Black -Material:ABS -Size: 8.00X3.60X3.60cm/3.14X1.41X1.41in - Small size, convenient to take to wherever you want, the replaceable for trombone can satisfy your requirements better.-trombone accessories - The trombone is safe and durable for long time using, will not deform or break easily.-mouthpiece for alto trombone - Simple structure, light weight, tiny size, the trombone can be easily installed without spending too much effort or energy.-trombone mouthpiece - Come out with a good sound for your trombone, proper for both professional and beginners, very practical and professional.-trombone mouthpiece replacement - These for trombone is made by professional craft, not easy to crack when you are using, you can use rest assured.-trombone mouth The trombone is with stable working performance, maintain a rich tone and clear sound-trombone supplies Fine craftsmanship, no burrs, the trombone will not easy to deform or crack, can be used with much more confidence-trombone accessory Practical trombone is easy to carry around and also store, reasonable structure, durable for-trombone mouthpiece for beginners These for trombone is made by professional craft, not easy to crack when you are using, you can use rest assured-plastic trombone mouthpieces Come out with a good sound for your trombone, proper for both professional and beginners, very practical and professional-instruments and instrument accessories