Amethyst Garden ☆ Inner diameter: 17 cm (If you wish to adjust the inner diameter or change to a transparent silicone rubber string, please feel free to message me ^ ^) Approximately 11 mm Returns are not accepted. I am also selling this item elsewhere, so there may be cases where I ask you to cancel your purchase (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 Stone Material: Amethyst