The Imperial Dry Neck Lube Convenience Pak provides an easier way to purchase pre-charged application media along with the recharging lubricant. The included Application Media may be used for an indefinite time period with dry lubricant recharging every 400-500 cases. The Application Media charged with Imperial Dry Neck Lubricant is a highly effective dry blend that will lube the inside and outside of case necks at the same time. This saves time and ensures even distribution.