Biodegradable cellulose paper aromatherapy pads that are about the size of a US dime coin. These small subtle pads are great for a wide variety of applications and can easily hold 1-2 drops of essential oils. These come in a pop out sheet of 54 cellulose paper aromatherapy refill pads that can be used in multiple products including necklaces, bracelets, car vents, wall or car diffusers, etc. These can even be used for a subtle fragrance in your office or bedroom without any diffuser by just loading with oil and placing in your location of choice. Each pad is 16mm diameter by 2mm thick (the size of a US dime). Simply place a few drops of your favorite scent on the pad until properly saturated. For our thicker felt and cotton color pads or our rectangle cellulose pads please visit our brand page on Amazon. The texture of these pads are similar to the card paper style air fresheners sold for cars. These pads are not scented and require and essential oil or other scented liquid to be applied. Made in the USA