PILL FOBS KEEP VITAL MEDICATIONS CLOSE AT HAND! Set of 3 fobs (one each of red, green, silver) allow for easy identification of contents. Made of lightweight aluminum with airtight screw caps that ensure freshness and potency. Attach to your key chain with included split rings. Small measures 1½" H x ½" diam.; large is 1¾" H x ¾" diam.