Package Contents: 1 Incense Holder One backflow incense holder with 5free scented cone incenses Backflow incense might take 30-40 seconds to start Back-flow incense burner creates an illusion of a smokey waterfall Simply place an incense cone at the top of the waterfall and with the cone's special properties, the smoke starts to flow in reverse direction, that is from top to bottom and in-turn creates a beautiful smokey waterfall;