Woodwick Candle Reed Diffuser 3 Oz. - Cinnamon Chai features a highly concentrated fragrance infused with essential oils. Designed to last 4 weeks or more, each diffuser features one 3 oz. of genuine Woodwick fragrance oil and 10 natural espresso reeds. Woodwick Reed Diffusers are the perfect way to continuously fragrance any space. Cinnamon Chai combines spicy cinnamon with rich vanilla notes.