The 3137 Challenger I is a professional Bb trumpet whose features make for a familiar and user-friendly ergonomic system. All B & S trumpets feature a very unique one-piece hand-hammered bell which is made in the traditional way of hand-craftsmanship using the knowledge of our skilled master craftsmen using hands-on techniques. This allows the trumpet to be full of rich colors and resonate completely with many desired characteristics. The Challenger I trumpet comes in a single hard-shell case wi