This first aid kit comes in three sizes in either plastic or metal cases.  Everything you need for minor to moderate medical incidents.  
 
Small kit comes with a plastic case and has supplies for 1-5 people.
 
Medium kit comes with a metal case and has supplies for 6-15 people.
 
Large kit comes with a metal case and has supplies for 16-199 people.
 
*Kit may come different than the picture.