No. 6 Material: Natural Stone Bead size: Approximately 9.3mm Inner circumference: Approximately 16.5cm We can adjust the size down by removing natural stones (^-^) Please note that due to the nature of natural stones, there may be cracks, chips, dents, inclusions, and variations in color, shape, and size. Please understand that the colors in the photos may differ slightly from the actual product due to screen and environmental factors. There may be a size error of ±0.5mm. Please understand that there may be some errors due to amateur measurements. m(_ _)m Thank you. Shipping will be in simple packaging.