Size: Inner diameter approximately 16cm Materials: 1.0mm silicone rubber, single strand [Used Natural Stones] Larimar [High Quality] → 12.5mm Blue Topaz → 6mm Amazonite → 8.5mm Morganite → 12mm Aquamarine → 9.5mm Peridot → 6mm Milky Quartz → 8.5mm Lavender Amethyst → 12mm Aventurine → 9mm Madagascar Rose Quartz → 6.5mm Citrine → 8mm Deep Star Rose Quartz → 11mm Labradorite → 6.5mm Burma Jade → 8mm African Strawberry Quartz → 8mm Aquamarine → 12mm Purple Chalcedony → 8mm White Agate → 6mm Golden Rutile Quartz → 6mm Green Fluorite → 12mm Lavender Kunzite → 9.5mm Inca Rose (Rhodochrosite) → 7mm ※ The parts used are 18KGF. This colorful bracelet features the beautiful wave patterns of Larimar.