Desiccant Storage Protection Packets w/ Humidity indicator cards. FREE DOMESTIC SHIPPING ON THESE ITEMS! 25 Desiccant packets to pack with your knives for moisture protection. Packets measure approximately 1.5″x.875″ and are rated to help protect approximately 47 Cubic inches. That’s about the size of a normal 6″ x 1.5″ tube or a 2″x 2″ x 11″ box. Included with the 25 Packets of Desiccant are 5 Humidity Indicator Cards. When the Dots change colors you will know the humidity levels and when to change desiccant packets. Great to place in storage areas or display cases to help monitor your knife collection.