Wisesorb 2 LBS orange to green indicating silica gel beads are beads of silica gel (desiccant beads) , used for absorbing moisture from the air to protect things that would be adversely affected by dampness. No harmful cobalt blue chemical in it, so safe for you to use. The beads can be reactivate by placing into oven to drive off excess moisture. The orange color indicator is convenient to judge when they need to be changed. Put silica beads in a zip-lock bag with your small pill box for travel to keep your meds from getting wet and expiring in my backpack. Dry squash seeds for next year, a wet carbide drill bit, pocket knife, moist garlic from the grocery store, and other things in the beads. And when they turn green, just pour them into a cake pan, and bake at 200°F-250°F (do not over 250°F) for 0.5h-3 hours. We would suggest letting the beads pre-heat inside the oven to keep them from heat shocked and popping. The silica gel save your electronics such as camera. If your camera was dropped to fresh water tank, put beads in regular plastic box with camera and leave it for couple weeks to absorb moisture. Wisesorb indicating silica gel beads are so convenient and cost effective as it's reusable. Use beads to keep your camera dry in the bag or after when camera got wet from rain/snow, please just throw it in the box with some of these gels and never have to worry about damage again. Works great to avoid mold and mildew in your cars to keep damp seats and carpet dry for longer use. Also works well for avoiding your 3D printer filament, fire resistant boxe, safe, ammo cans, gun safe, paperwork, camping gear, wine fridges, wine chiller and even your car that doesn't get driven very often getting moldy/musty. Or replace the worn out crystals in the desiccant container you use for your hearing aids.