This is a set of two natural turquoise round beads for use with leather cords, etc., from Goros. (Silver and K18 beads are not included in the set.) As you can see, these are high-grade turquoise, unlike commercially available turquoise. Origin: Dry Creek mine, USA. The hole diameter allows for two leather cords to pass through, making them versatile for use with thick wallet leather cords, leather cord ends, bag leather cords, and more. Thank you. We apologize, but this is a limited quantity, and there are no plans for the next shipment after this current listing. We were finally able to procure these, but the price has increased due to the weak yen. Thank you for your understanding. Thank you. Round bead size: Approximately φ8mm wide x 6mm high x 3mm hole diameter