● Wrist circumference (actual size): Approximately 19cm (using silicone rubber). 18 silver obsidian beads, 1 amethyst cube, and 7 natural crystal beads. ● If requested, I can adjust the size, from 16cm to 19cm. ● Silver obsidian: Approximately 10mm in diameter. ● Amethyst cube: Approximately 10mm * 10mm. ● Color: Refer to the photos. ● Since these are natural materials, there may be extremely minor natural imperfections. Please understand this beforehand.