20 gram X 5 PK Silica Gel Desiccant Moisture Absorber -FDA Compliant Food Safe Silica Gel Beads Size : about 2 ~ 4 mm Silica Gel Beads Color : Clear White Pure Silica Gel without Cobalt Chloride Packet Material is Tyvek Packets come in a reclosable Nylon Moisture Barrier Bag.