Small size, big humidification. The new Power Stick humidifier from HUMI-Care is refillable and easily humidifies up to 50 cigars with its compact design. Inside are specially formulated crystals containing propylene glycol to chemically balance the humidity level in your humidor. The crystal gels inside expand after absorbing distilled water and contract when it's ready for a refill. Perfect for small humidors, travel cases, or just a little added humidity when you need it.