The Jiggs pBone Plastic Trombone is a lightweight alternative to a brass model. It sounds remarkably similar to a typical horn while being ergonomic and comfortable to hold and use. The composite glass fiber slide features durable construction that resists dings and dents and gets smoother over time. There is also a water key to release fluid and a lock to hold the slide in place. A matching plastic mouthpiece and carrying bag are also included with this green trombone.