Our refill pads are 1.5 inches long and 3/4 of an inch wide. Made with 100% natural cellulose fiber pads and compatible with all ball style electric and car diffuser products. Also great as a standalone aromatherapy scent pad. Simply load with a few drops of your favorite essential oil or fragrance and put anywhere you need a scent boost! Compatible with Young Living, doTERRA, Eden's Garden and all other essential oils, fragrance oils, perfume or cologne.