Wisesorb 40 Gram Pack of 2 Silica Gel Canister, Gun Safe Dehumidifiers (Orange to Green), Reusable Desiccant Moisture Absorber for Car, Closet

【Portable and Durable Silica Gel Tin Canister Dimension】: Each tin canister is 4 inch x 2 inch x 0.5 inch with high-quality aluminum constructs tin to be firm and sturdier protecting it from dents. Independent small portable silica gel tin canister is convenient for you to use and store. 【Indicating Silica Gel Beads】: Cobalt chloride-free orange indicating beads will change color to green when they become saturated with moisture. Each orange indicating bead is 2-4mm in size and will begin to change to different colors at 20%-50%RH. When you find the beads begin to change color, it does not mean the beads saturated with moisture and the beads will continue to absorb the moisture until 50%RH. You can check the instruction to measure the humidity and moisture. 【Easy to Reactivate】: Reusable desiccant dehumidifier can be reactivated by placing into the oven for 3 hours at250F. Depending on silica gel beads condition, they may take shorter than the recommended time. Please check the silica gel beads color. 【Great Absorbing Capacity and Multi-purpose】: Each 40 grams of active, the indicating silica gel can protect up to 30 cubic ft of any enclosed storage space such as safe, ammo cans, ammo boxes, tool box, 3d printer filament sealed plastic storage box, weapon case, closet, etc. 【Package Includes】: 5 packs of desiccant canister, 40 gram indicating silica gel each, 200 grams total. Each desiccant canister individually packed in bags which is easy to store.