The Jupiter JBS-1000 Baritone Saxophone features plastic tone boosters blue steel springs an adjustable thumb rest and adjustable palm keys. The saxophones body neck and keys are all made of gold lacquered brass. The body is made using advanced technology which ensures accurate scale and playability. The keys are made from the highest quality tempered brass and then finished with a high gloss gold-lacquer for long lasting durability. The adjustable palm keys allow all hand sizes to fit comfortably on the upper stack. The JBS-1000 comes equipped with a wood-frame case.