Makes a full-size model of a B flat trumpet. Requires a pair of 3mm needles, a quartet of 4mm needles, wool needle for sewing up, a French knitting doll to make the pipes, a plastic straw or two and three buttons for the valves, thick bead wire to support pipes, thin bead wire to support the mouthpiece, and other support structures and stuffing for valves and bell. Uses two colours of yarn.