Autism Hand Blown Glass Awareness Necklace. This hand made charm is absolutely stunning. It is made of hand blown glass and hangs on a sturdy 16" rubber cord with a lobster clasp. It also comes in a darling blue chiffon gift bag with a blue ribbon pulley. This autism necklace stands out when you wear it. The glass charm measures 1 1/2" across and 1" high. Makes a great gift idea as well! Made by a mom who's child has autism.