While a plastic trombone cannot compete with a high end brass equivalent, they do have a good sound quality throughout the note range. These instruments are made from high quality ABS plastic, and this provides several benefits when compared to brass. These include: Lightweight Plastic trombones are less than half the weight of brass models, making them ideal for use by children or beginners. Easy to Maintain All parts can be removed and cleaned. In addition, the plastic material is more hygienic than metal. Colorful Designs Keeping kids interested for longer, as well as for adding more “stage presence” for established musicians.