For optimal use, add 3 drops of essential oil or perfume onto the porcelain flower of your Box Diffuser Cosmos Gray Large from France. This will transform your box into a fragrant diffuser. To protect the wood, always use a cloth when applying perfume to the flower. For maintenance, simply clean the box with a soft, dry cloth and avoid using harsh chemicals or abrasive materials that could damage the wood. Dimensions: 6.5"w x 4"h.