Keilwerth SX 90R baritone saxophone, low A, bell diameter: 7.4" (190mm), weight: 11lbs (5kg), body made from nickel silver, black nickel plated and clear lacquered, keys silver plated, sophisticated engraving on bell, bow, body and neck, excellent and precise response, perfect intonation, very even overtones, tone hole rings, thumb rest adjustable in height and angle, adjustable palm keys, G# pad cup lifting mechanism, auxiliary high F# key, stainless steel screws, mother of pearl key inlays without metal rim, hydraulically formed neck, leather pads with metal resonators, waterproof, incl. case