Hydrosorbent Silica Gel - $24.88

Drinks up dampness from within gun safes and other enclosed storage areas, protecting firearms and other valuables from condensation, rust and mildew. Requires no electricity and remains dry to the touch even when saturated. Built-in indicator turns from blue to pink to signal when it's time to reactivate, which is done simply by placing in oven and drying out. Available: Protects 3 cu. ft., Protects 33 cu. ft., Protects 57 cu. ft. - $24.88