Candyl Kindle is a 100% natural wood diffuser- composed entirely of untreated black walnut. Simply drip any essential oil onto the sticks. The oil will seep into the natural pores of the black walnut wood sticks. Once absorbed, the fragrances from the essential oils are released slowly and naturally into the room through evaporation. Best for small spaces, portability, and natural living. Cute on a desktop or bathroom countertop (2.5 in x 2.5 in 2.5 in).