SCURRY: Pill Holding Small Metal Vial - Key Ring - Another Plastic Vial Inside This handy metal vial contains a surprise inside - another, smaller vial! Smaller vial is made of plastic and has a aluminum cap; great for emergency medical dosage! The plastic vial is 1 inch long & has 1/4 inch in diameter This items weighs on 0.05 ounces, and is moisture resistant The plastic vial can hold medication, or a note about medical emergency information