NauticalMart Valve Trombone Bb White 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 NauticalMart Valve Trombone Bb White 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 hardshell case, a pair of gloves, a soft cleaning cloth.