Crafted from sustainably sourced walnut wood, this diffuser features a square base that nestles lava beads or wooden scent cubes in the indented center. It gives you the option and ease to replace the scents immediately by just replacing the scent cubes or lava beads. Using the disposable and refillable lava beads or scent cubes, it also provides easy cleanups, as you just simply remove the used cube or beads and replace with fresh ones treated with new oil of your choice. Directions: drop essential oil directly on the lava beads for it to absorb and diffuse. Care tips: avoid contact with water to prevent cracking Disposal: repurpose the wood block for gardening, crafts, and other creative projects check city's waste management info before disposal. wood can be classified as recyclable or garbage depending on cities' recycling capabilities if unsure, always consider composting in backyard over throwing into the garbage