This Visol humidifier is made for humidors with a capacity of 75 to 200 cigars. All you need to do is soak it with distilled water and attach it to the ceiling of the humidor. The humidifier can be attached to the humidor with the magnetic plate that is included. Your cigars need to be kept moist so order this humidifier today! If you have a humidor that fits more than 200 cigars, it is suggested that you use two of these Visol humidifiers.