Wow! I haven't thought about beads in years. I used the Heartfelt beads (in their brand tubes and rectangle holders) in a couple of 100ct humidors for a while and they worked well. I wound up giving the humidors to my son five or so years ago, so I don't know how they held up long-term. That was about the time I switched over to silica cat litter for most of my other humidors. I wound up switching to Boveda packs in my samaller desktops, but have the Black Ice pie jars in my larger humidors these days.