The crystals will shrink slowly as water evaporates over time. Simply refill the bar with XIKAR propylene glycol solution to recharge the humidifier.

Features:

• Units are packaged dry and must be filled before use.
• Slow, steady release of constant humidity of 70%
• Regulates humidity for up to 50 cigars
• Refill with XIKAR PG Solution once each month or as necessary, when crystals shrink to about half their size

Dimensions: 14.5cm L x 2.0cm W x 1.5cm H (5 11/16" x 3/4" x 9/16")