Nauticalmart 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.