Review on 📦 Dry & Dry Premium 20 Pack Reusable Humidity Indicator Cards (10-60%) – 6 Spot – Includes 20 Cards by Steven Stager

I like this packaging because it gives an idea of how my gel packs will perform in my ammo canisters where I keep my guns, ammo and valuables. When the 3rd dot from the left is a little discolored, I know it's time to toss my gel packs in the oven. I'm no longer in the dark wondering how my gel packs are doing. I put them on top of my stuff in ammo cans, which gives me instant feedback when I open ammo cans.