Spiced Chestnut is rich with the warm, buttery fragrance of roasted chestnuts laced with cinnamon and clove. Our natural diffuser reeds produce a light, delicate fragrance drawn from pure essential oils of botanicals. Just place the reeds in the glass bottle (included) to gently disperse the oil's aroma into the air. Glass diffuser bottle. Scented oil: 4.5 fl oz. each. 12 reeds each. Will release scent for up to 2 months. A Williams Sonoma exclusive.