Thank you for viewing. [Product Overview] A "banzhi" is a ring for the thumb. Its history is very old, originally used as a finger protector to protect the finger from the string when drawing a bow. However, during the Qing dynasty, it became very popular as an ornament for noble men. The material was originally gold, silver, or other animal bones, but during the Qing dynasty, many were produced, especially those made of jade and jadeite. [Product Description] Material: Unknown Size: Height: 23.3mm Diameter: 31mm Inner Diameter: 22.2mm Weight: 34.4g "It has a double structure, and the outer ring (outer circumference) can rotate." As it is an old item, there are scratches, scuffs, stains, discoloration, and wear. This is one of the items that came out while organizing items inherited from my collector grandfather. Details such as appraisal, the age of the collection, and the material are unknown. Please check the condition carefully in the images and make your own judgment. Popular word: Antique tools