NauticalMart Valve Trombone Bb Black Includes a carrying case and a mouthpiece. Phosphorus copper used on lead mouth pipe. Smooth action valves, comfortable white faux mother of pearl inlaid buttons. 30 days warranty against any manufacturing defect Manufactured By Medieval Epic Description trombones are ideal for beginner to medium level or student musicians. This trombone features a phosphorus copper lead mouth pipe, with 3 smooth action valves. Every trombone is play tested at our factory and re-tested by a professional to ensure that their high-quality standards are met. This is why thousands of instructors have approved these trombones. This trombones package includes a hard shell case, a pair of gloves, a soft cleaning cloth, and a bottle of valve oil. Buy with confidence as it comes with a 14 months warranty against any manufacturer's defects.