Pure Copper Bracelet, Healing Jewelry, Copper Jewelry, Adjustable Kriya Bangle, for astrological purpose, 3.5 mm thickness Inside diameter 70 mm, can be adjusted as it is open bangle Unisex Pure copper gets tarnished and oxidized eventually while coming in contact with the atmospheres air. Just clean it from a cotton cloth and it will go away. Wearing copper has various health benefits and spiritual benefits. It reduces stress, slows down ageing process, boosts immunity, improves heart health, helps in mental and spiritual vibrations, assists in wealth creation, protects us from negativity, and boosts our self-confidence. Copper works as antioxidant, relieves us from inflammation. Copper controls high blood pressure and helps eliminating arthritis Copper helps us in becoming magnets for spiritual good vibrations and positive energy. Copper is also associated with fertility. A piece of copper should be worn on our body at any given time.