The Desiccant Refill Kit gives you 52 grams of replacement-indicating desiccant for the Large Desiccant, Extra Large Desiccant, and the Outboard Desiccant. Indicating desiccant gradually changes from blue to pink as it becomes saturated with moisture. The refill also contains replacement glass wool to prevent desiccant from falling out of the cable end of the pack. To protect your equipment, be sure to replace the desiccant before the entire volume has turned pink.