What it is: A fragrance diffuser insert of the fresh and green Tubereuse scent-compatible with Diptyque home, wall and car diffuser systems.Fragrance story: This diffuser cartridge fragrance is inspired by the scent of tuberose in the wide fields of Southern India where these fragrant white flowers are grown. From the top of their long, slender stems, they exhale a heady yet fresh and green scent, delicately nuanced with fruity, milky notes. These cartridges contain pearls highly concentrated in perfume, faithfully reproducing each note of the fragrance. Style: Floral. How to use: The cartridges can be kept for up to 3 months after opening, provided the container is properly closed after use.They have a lifespan of 40 hours continuously or up to 80 diffusion cycles (1 cycle corresponding to 1 hour). Refill only; Home Electric Diffuser, Car Diffuser and Electric Wall Diffuser sold separately Made in France