St. Dymphna & St. Nicholas Medal - Patron Saints of Autism On A Ball Chain This beautiful Patron Saint Medal features the images of St. Dymphna and St. Nicholas, the patron saints of Autism.This .75" round medal is made of durable zinc alloy and comes on a 26" ball chain. The chain can also be easily cut to size to fit your preference using clippers or kitchen shears. The medal is made in Italy.