Pearl Flutes Quantz Series Flutes 665RB1R. Made in Japan, this concert flute features an inline G and B-foot, perfect for intermediate players. The body and keys are made of silver, with a sterling silver headjoint. The keys are plated and the finish is also made of silver. open hole. The model is Quantz and the Brand is Pearl Flutes. This flute is ideal for those who want to step up their playing and experience a high-quality instrument.