One-piece cast gong Traditional construction and finish Predrilled and corded Each Zildjian Orchestral Series Gong offers a complex blend of highs and lows with beautiful warm overtones and plenty of attack when necessary The Zildjian Orchestral Series Hand-Hammered Gongs are available in 26 inch (P0499), 30 inch (P0500), 34 inch (P0501) and 40 inch (P0502) sizes Traditional Orchestral Gong 26 in. The Zildjian Orchestral Series Hand-Hammered Gongs are the first choice of the world's leading symphonies. Zildjian Orchestral Gongs feature a one-piece, cast, hand-hammered construction gong crafted in China in a Centuries-old tradition. Each Zildjian Orchestral Series Gong offers a complex blend of highs and lows with beautiful warm overtones and plenty of attack when necessary. The Zildjian Orchestral Series Hand-Hammered Gongs are available in 26 inch (P0499), 30 inch (P0500), 34 inch (P0501) and 40 inch (P0502) sizes.