200 grams 4 Packs silica packets ✅ [ Microporous Type-A Silica ] Specially engineered for and high-precision equipment, the dehumidifier for safe features Type-A silica with a larger microporous surface for superior moisture absorption and humidity control. ✅ [ Reuse Within Minutes ] Simply microwave the safe dehumidifier for 8 minutes once it reaches approximately 260g to restore its moisture-absorbing capabilities. A detailed manual is also included for your convenience. ✅ [ Easier Humidity Control ] More space efficient and plug-free, just place these safe humidity absorbers in your safes and they will create a secure, dry environment that prevents corrosion, wood damage, and component failure. ✅ [ 0 Leak Risk ] The microporous silica is physically absorbing material that stays clean and dry after absorption, with 0 risk of leaks or contaminating your space. ✅ [ Secure Double Packaging] Each silica packet for safe is individually sealed to prevent premature absorption, ensuring they're ready for use upon arrival. The resealable outer bag offers airtight storage for unused packs.