The design of this ring derives from the deer horn, which represents courage and power. The smoothed surface lend the exterior a dynamic yet metallic aesthetic that establishes a strong and modern identity. The ring is Size 8 (Inside diameter is 18.2 mm), it is adjustable as it is open end. Please don't hesitate to contact me if you want more size option. For the ring size, please refer to the chart below: http://www.ringsizes.co/.