John Packer JP173 student Bb baritone horn outfitIntroducing the John Packer JP173 student Bb baritone horn outfit The JP173 is a full size Bb baritone horn with a 0. 504 bore. This instrument features a gold lacquer finish, made entirely from yellow brass, making it highly durable, perfect for use in schools, music services and training bands. Excellent features The open wrap design and redesigned valve block means this baritone horn consistently outperforms others in the same price bracket, always