One of the great things about our reed diffusers is that because there's no flame, you can leave them unattended and they last for weeks and weeks! Once the scent has all been diffused you can refill the bottle with our Blended Perfumes and Renew the Reeds at any time you fancy. Fairy Dust; Invisible & True. Of all our reed diffusers, this is our most popular. A difficult scent to describe; based on a fine fragrance. It's Powdery, Warm, Sparkly and Magical. In short- Fairy Dust!