Unlike inferior models, our Deluxe version is made in the Orient of durable, rattan and has a smooth unexposed joint which won"t catch when doing circular drills (no cheap wrapping). This is a traditional styled ring designed for developing Juen Ging or Whirlpool Energy. It is NOT a thin rattan ring! Handcrafted from select Rattan, sanded and varnished. Made in the Orient. 12 inch inside diameter, 14 inch outside diameter. Approximately 1 inch thick.