Silvertone Puzzle Piece Charms Autism Awareness 2 Sizes - 24 Pieces 24 Puzzle piece shaped silver tone charms Perfect for Autism Awareness Jewelry and fundraising 2 Sizes (12 each): 5/8 inch (17mm) and 1 inch (23mm) A Puzzle Piece is the Autism and Asperger's Syndrome Awareness Symbol Strong Silver Tone Metal - Great for Jewelry, zipper pulls and more