White Phantom Quartz ☆ Inner diameter 17.5 cm (If you wish to adjust the inner diameter or change to a transparent silicone rubber string, please feel free to message me.) Approximately 10 mm Returns are not accepted. I am also selling on other platforms, so your purchase may be canceled. (T_T) The price does not change even if the inner diameter is adjusted. Extra beads will also be included. Thank you very much! Material: Natural stone Bracelet/Bangle: Bracelet