The Brontide 6mm Adjustable is for those who like a clean, subtle look. This adjustable bracelet is perfect to combine with other bracelets, but can also be worn alone. The bracelet features gemstones that all carry a valuable meaning. The names Tokyo, Kyoto and Osaka are based on the colors that characterize these cities. Gemstones: Osaka: Black Agate, Brick Red Agate, Shiny Red Agate, and Jasper Kyoto: Matt Amazon, Dragon's Blood, Jasper and White Agate. Tokyo: Black Agate, Brick Red Agate and Shiny Red Agate.