The Reed Diffuser is a safe, USA made, flame- and smoke-free alternative to burning candles and incense. Richly scented oil releases its fragrance to the air through the wood reeds. Vanilla Hazelnut (warm nutty vanilla) scent lasts approximately 8-10 weeks after opening. Oil is packaged inside of a clear glass bottle with a black metal collar. Stands 4-1/2" tall, 2-1/4" in diameter, includes 8 10" reeds.