100% pure and authentic copper metal.
Only joints are soldered with other metal that's common in all these kara and even fine Gold and Silver kara where different metal is used to join the two ends.
These kara do not rust and are non allergic to skin.
Copper kara have several medicinal properties and health benefits. That's why these are also known as healing kara/bracelets.
Good Luck kara as per Hindu Mythology and Indian Astrology. Brings good luck to wearer and protects from evil eye and bad spirits.