An extra 5 Scent Scene refills - the ambience need never end. Like a stroll through Dubai's perfume souk at dusk, it's rich with saffron and white oud. Fragrance Top Notes : Saffron, Olibanum  Middle Notes: White Rose, Jasmine Base Notes: Oud (Agarwood), Sandalwood, Amber  Instructions Place the Scent Stems into the Glasshouse Fragrances metal vessel (sold separately), ensuring it's placed on a flat surface away from open windows or vents. Replace your Scent Stems every 30 days to refresh your fragrance or to increase their strength. After 30 days the Scent Stems can be placed in recycling with other paper products.