Autism puzzle ring: Silver Puzzle Pieces Create A Stretch Ring That's Perfect To Raise Funds For Autism Awareness & Research or show your support for someone with autism! This silver-tone stretch puzzle ring is the perfect way to show your support for Autism Awareness! Comfortable stretch band will fit approximately sizes 6-9. Stretch rings make the perfect present! Puzzle ring band measures 1/8 an inch wide. Stretches to fit most fingers.