This is fantastic stuff. Just saturate your HUMI-CARE jar with a small amount of distilled water and the crystals absorb and expand. These specially-formulated crystals contain a humidity-balancing solution of propylene glycol, so you’re assured of a slow, steady release of moisture and constant humidity of 65-70%. Each refill with distilled water typically lasts 1 to 2 months, and each jar can be refilled over and over for up to a year before replacing. It’s a no-brainer, puts your 25-300 capacity humidor in good stead, with very, very little babysitting by you. 4oz. jars.

http://www.cigarbid.com/Auction/Lot/1088891/HUMI-CARE-Crystal-Gel-Humidification/ 

What about the tubes that look about the same as those?? I have a travel humi as well and was wondering what would work for that as well. Plus they look like I may be able to get them a little cheaper.

Yup! The Dri- mistat gel tubes work great in smaller spaces, just don't overfill, cause they will spill a bit. Thank You for Your service, sir. and Welcome to the madness.

PM me your address Ill send you a jar, Is there are no restrictions. I have to warn you my humidors are full