Inner circumference: Approximately 15cm, with some margin of error. * If you wish to change the size (up to 17cm free of charge), please let me know after purchase. Red Aventurine (tumbled) Crystal Quartz 6mm Aquamarine 4mm New Jade 6mm Strawberry Quartz 6mm Peridot 4mm Rose Quartz 8mm Amethyst 4.5mm Button-cut Crystal Quartz Larimar 8mm Double strand of Ope-ron rubber The Larimar has a small flat area. * The knots in the rubber are not secured with adhesive. If they come loose, gently pull them back in from the opposite side of the stone. The stones may have small scratches, inclusions, color variations, dents, and natural cracks. This is handmade by an amateur, so please refrain from purchasing if you are looking for perfection. 79