This listing is for a Rutilated Copper Quartz Copper Wire Wrapped Pendant. This item comes with a black nylon adjustable cord.  Other necklace types are available for an Upgrade. 
Rutilated Copper Quartz is known to Blocks Negative Energy, promotes feelings of Courage, Vitality, Confidence and Decisiveness . It supports the Sacral, Solar Plexus and Crown Chakras.