Charcoal Rose Diffuser is long lasting and will add a decorative touch to any space. This enticing blend of Subtle Charcoal and Fresh Rose will fill your home with several months of fragrance. Key notes: Fresh Rose, Subtle Charcoal, Mandarin Peel, Peony Petals, Geranium Leaf, Clary Sage, White Musk, Patchouli. Useful Life: Several Months (depending on actual room conditions). Reeds Measure: Approx 11 inches.