Thanks. I went to their website. The product seems to be what I need, but it is somewhat confusing. Here's a copy of their description of the 2x2 size, and below that a copy of their description of their 4x4 size -
"About this item
This Zorb-It 2”x2” moisture control packet protects up to 200 cubic inches of volume and is perfect for protecting valuables with non-metal components in small enclosures. We recommend including one of these packets in each of the following small compartments of your enclosure.
Typical usage
Trail cameras
Small camera cases/small compartments on camera bags
Small general storage containers without electronics"
"About this item
This Zorb-It 4”x4” moisture control packet protects up to 2 cubic feet of volume and is perfect for protecting valuables with non-metal components in enclosures. We recommend including one of these packets in each of the following main compartments of your enclosure.
Typical usage
Camera cases
Trail cameras
General storage containers without electronics
Personal safes without electronics"
Where I'm running into confusion is that they recommend these for camera cases and safes, but state to be used with "non-metal components," and something about no electronics. What am I missing?