Replacement sponge for the complete SugarBaby Brown Sugar Saver. The full size food saver offers a touchless moisture source, a food grade sponge that fits into the humidor lid and is moistened approximately 3-4X per year. The humidor lid is what creates the necessary moisture or humidity within the SugarBaby jar to keep brown sugar fresh, fixes rock-hard brown sugar within 24-48 hours plus keeps other items fresher longer (dried fruit, marshmallows, soft candy, baking & more). Learn more or shop SugarBaby Brown Sugar Saver SB sponge measures 57.15 mm | 2 1/4" in diameter and 19 mm | 0.78" thickness. food grade | food safe replacement sponge | round color-white Before First Use Instructions: wash the SugarBaby sponge with hot and soapy water or alternately boil it for 5-10 minutes. if anything comes into contact with your sponge re-wash or re-boil to disinfect it.