Includes 6.7oz of premium essential oil Easily refresh your space by pouring the refill oil into your current diffuser, or simply insert reed sticks directly into the refill container. Long-Lasting Scent - Enjoy the fragrance up to 90 days. Crafted with the expertise of professional perfumers, our reed diffuser refill provides a long-lasting and balanced fragrance that fills your space beautifully. Perfect Presents - Meaningful gifts for loved ones, coworkers, and clients for all occasions including birthdays, weddings, holidays, Christmas, dinner gatherings, and housewarmings.