High quality and 3 mm thick, these are 100% natural wool felt diffuser pads for your essential oil aromatherapy lockets.
The added thickness fits better in the lockets and prevents the oil from soaking through and getting all over your locket. I use only 100% natural wool that has been tested and naturally dyed to Oekotext standards 100. This means that no toxins whatsoever will mix with your essential oils.
Because these diffuser pads are wool and not synthetic, you can wash them in mild soap (dish or castile soap), dry them, and reuse them. They are very durable and do not fray.