Pyrite in Quartz ☆ Inner diameter: 16 cm (Please feel free to message me if you would like to adjust the inner diameter or change the string to a transparent silicone rubber ^ ^ Approximately 6.7 mm Returns are not accepted. I am also selling this item elsewhere, so I may have to cancel your purchase. (T_T) The price will 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: Quartz