Designed exclusively for Lifelines ClickWick™ Diffusers ****(Candle, Plant, and Shower Diffusers ONLY USE CLICKWICK OILS***********), Lifelines ClickWick™ Refills feature our patent pending diffusion cap and specially formulated Essential Oil Blends. Pair them with any Lifelines ClickWick™ product to transform your space into a unique sensory experience. Sold separately:  four fresh blends - Vanilla/Tangerine, Coconut Hibiscus, Peach Velvet, Desert Canyon Air