Rajnikanth Sir Popularly Known as The Thalaiva, wears this distinctive copper kada (bracelet) on his wrist. This piece of jewelry has become iconic over time and is associated with the Rajni Sir's strong and confident persona. Also Copper kadas (bracelets) have several advantages, both from a health and aesthetic perspective like Improved Blood Circulation, Anti-inflammatory Properties, Boosts Immune System, Promotes Healing. In many cultures, copper kadas are worn for religious and spiritual reasons. They are considered a sign of auspiciousness, protection, and good fortune. Not to Forgot The same Has also been used by Rajni Sir In the Movie Sivaji The Boss so by default its a masterpiece.