The Luin Living Diffuser Refill Set contains a 200ml refill bottle of aromatic oil and 7 wooden reeds. Bring me the SUNSHINE is a sunny fragrance with notes of freshly sliced, juicy watermelon and hints of crisp, green apple. This Reed Diffuser fills any interior with an inspiring sunny fragrance.The strength of the scent can be adjusted by the amount of reeds. The more reeds you use, the stronger ambiance you achieve. The ideal time of usage for the oil is 6 months, but may last much longer than that.