Buttered Maple Syrup is our best selling scent - be prepared to answer the question of "What smells so good?" The Reed Diffuser is an alternative to burning candles and incense and it is safe to use around pets and children since there is no flame. This 4 ounce bottle transfers scent to the air through wood reeds that are inserted in the top opening of the bottle. Scent should last 8-10 weeks when used 24 hours a day. The diffuser bottle is made of glass with a simple black metal collar. Metal diffuser holder sold separately. Made in the USA!