5 Gram X 50 PK Silica Gel Desiccant Moisture Absorber -Ammo Gun Safe Camera Lens Silica Gel Beads Size : about 1 ~ 3 mm Silica Gel Beads Color : Clear White Pure Silica Gel without Cobalt Chloride Packet Material is Cotton Packets come in reclosable Nylon Moisture Barrier Bag.