8.6-8.8mm. Inner circumference is 16cm. Adjusting the inner circumference smaller is free, but increasing the inner circumference to 17cm costs an additional 100 yen, and 18cm costs an additional 200 yen. ☆ Salt Source Agate ☆ Salt Source Agate (Salt Source Agate) is a type of agate produced in the Yanyuan County of Sichuan Province, China, and is characterized by colorful hues such as red, pink, and orange. ☆ Energy of Agate ☆ Maintains good relationships Gives courage and increases action Amulet for health and longevity Cultivates harmony Brings positive thinking ※ If you wish to combine multiple items, we will discount 100 yen per item from the second item onwards. ※ Immediate purchase is OK ^o^ We will prioritize those who purchase immediately, even if you are in the middle of commenting. ※ There may be inclusions and dents unique to natural stones. Please understand this as a characteristic of natural stones.