Injector
a tool found in most medkits, an injector is used to administer pain killers and stimulants. It is a small, disk-shaped implement that is green on one side (where the stimulant is stored) and red on the other (where the pain killer is stored). Small needles on each side are projected when the injector is placed on a patient's neck, allowing the drugs to be placed into the patient's bloodstream.