I am taking over the production and sale of Shilala's beads from Scott. I don't have any pucks, but these beads are prepackaged in bags of various sizes that lay in your humindor and work very well at stabilizing and maintaining the RH.
The web site is not complete, but you can take a look at what is there so far, which also includes a calculator:
Shilala's Beads (
www.shilalasbeads.com).
These beads have many very small, uniform pores so their ability to hold moisture is much greater than other beads. They also do not absorb particles from air (or water) so they stay clean. They will absorb free ammonia (given off by all cigars, but particularly NC's), but even the amount of ammonia is so small that it will not "taint" the beads.
The beads themselves are inert, so they contain no harmful chemicals or toxins. If cared for properly, they will last forever. Proper care: don't immerse in water (not a chemical reaction, just friction which causes extreme heat).
Do not hesitate to contact me if you have any questions, comments, or concerns.