Each of our diffusers is carefully handcrafted and added essential oil that the scent can be last for few months.Add a few drops of your favourite essential oils on these unglazed ceramic stones. Wait for the stone to absorb and it will diffuse scent continuously and slowly without heat or electricity. It has no restrictions on location to freshen the air in restrooms, entranceways or other small spaces. Details Size 15cm 20cm Scent: Lavender x Peppermint Wood Sage x Sea Salt English Pear x Freesia Comes with 5ml pure natural essential oil All products are hand-made. Each product has different texture and color, It is unique, and there will be bubbles in the production process, and there will be irregular small holes on the surface. Perfectionists, please consider.