Description from Amazon USA : The top of the line with sterling silver body and leather case cover! French style pointed arms Sterling silver body made in USA, by Powell, with Modern Powell Scale Silver plated nickel-silver keys Handmade, sterling silver, Powell Signature headjoint made in Boston B Foot joint Open Hole Offset G Split E Sonar ; flutes offer a range of instruments which allow flutists to perform at top, professional levels. By partnering with one of the world's top flute makers, Verne Q. Powell Flutes, Sonar ; is able to offer professional quality at affordable prices. Through these partnerships, Sonar ; obtains high value, handmade instrument components that are critical for acoustical quality. Thus, Sonar ; flutes feature bodies made at Powell Flutes using their new patented Zinki technology and handmade Powell Signature headjoints. Both the body and the headjoint are made at Powell's Massachusetts workshop. Every Sonar ; instrument goes through a strict quality inspection and adjustment process by world class Sonar ; technicians.