Mens Lava Stone Diffuser Bracelet; black smooth leather bracelet 8" wearable wrap around size, total length 24" clasps in the front with lobster claw clasp, 20X15 mm Volcanic Lava Stone Bead. Add essential oil to the Lava Stone and it soaks in and becomes your diffuser. This is a wonderful way to enjoy your favorite scents! The scent will fade away over the next day or two depending on the oil you use. For example lemon wont last as long as peppermint which is a stronger scent. Once the scent fades away simply reapply different oils as needed. You will find that some scents blend nicely with each other so that applying a second oil on top of the first works great. For the strongest scent add one drop each day. Make sure the oil has soaked in before putting it next to clothing.