The Meinl planetary tuned Gongs are made in Germany in the European gong making tradition. Using the calculations of Hans Cousto to match the frequencies of the sun, moon and planets, each gong is tuned to produce the corresponding frequency.These gongs are handcrafted by the gong makers to respond with great sensitivity in all playing applications. Their mysterious sound comes from the countless hours spent handworking the metal. It is atmospheric and soothing. They are available in 61 cm up to 91 cm in diameter. Quantity: 1 pc. Size: 24" / 61 cm. Tuning: 221,23 Hz / A2 # - A4 / a‘ 440 Hz / 442.46 Hz. NET Weight: 4000 g. Features: Handcrafted masterpiece Nickelsilver Exact fine tuning. through hand-hammering. Printed logo and tuning info. Including cover and MEINL gloves.