This beautiful semi-precious blue agate stone bracelet is on a 7 inch elastic stretch to fit a variety of wrist sizes. Includes an elegant 925 sterling silver butterfly charm. A unique twist, it also has two lava diffuser stones. Add one or two drops of essential oil of your choice directly to the two lava stones... as your body heats the scents diffuse. The scent will last a few days to a week (some oils last longer than others). Once the scent is gone, you can change the scent as you please.