【Easy to use】：Silica Gel Beads 1KG contains bonus of 5 small + 5 medium breathable composite bags,which can be used for repacking。 【Multi-Scene Use】: Indicator indicating silica gel is widely used to protect various enclosed storage spaces , including Replacement desiccant for air dryers, 3D Printer Filament and compressors.filament dryer,filament storage 【Silica Gel can be Reactivated 】:Remove the silica gel from the bag.by Placing in the Oven for 0.5 to 2 hours at 200 to 250F Or Microwave for 10 Minutes at Defrost Mode; Don't use over 250F in the Oven; Depending on the Silica Gel' condition, they may take shorter than the recommended time; Please check the Silica Gel' color periodically 【Indicating Orange】: silica gel will change to Dark Green when 50-60% absorbed with moisture; Still almost half more capacity is left to absorb moisture even after color change; Orange Silica Gels are free of cobalt chloride 【Silica Gel Size】: 2-4 mm; These are not the fine powder type for drying flowers; Do not use them for drying flowers.