These Expandable Essential Oil Aromatherapy Bracelets drop from $16.98 to $5 at PinkEPromise, plus shipping is free. This is the lowest price we could find on a similar bracelet and the lowest price we have ever seen. You can choose from four different diffuser charms, which feature a lava stone, on which you apply your essential oil. Plus, a portion of the proceeds will be donated to a breast cancer foundation. There is no sales tax (except PA).