Boveda maintains consistent (relative humidity) RH that's perfect for cigars. Use one (1) Size 60 for every 25 cigars your container can hold. Example: For a 125-cigar capacity humidor, use five (5) Size 60 Boveda at once.

Boveda Size 60 are the right choice for:
Small to medium humidors, tupperdors, coolerdors, and travel cases 
Refilling medium and large Boveda Humidor Bags