The Fragrance Flask is made to work with the ECOYA Plug-In Diffuser, providing up to 700 hours of fragrance for your home. Made from recyclable glass, you can easily change the scent by replacing the flask. Available scents include Sweet Pea & Jasmine, French Pear, Guava & Lychee Sorbet, and Lotus Flower. The ECOYA Plug-In Diffuser is sold separately. Each flask contains 24mL and is made in New Zealand.