On these high quality Pediatric Stroke Awareness Heart Charm Keychains, which are sterling silver plated keychains, the words "Pediatric Stroke Awareness" are inscribed in a heart charm that is 3/4 by 3/4 inches. This can be fastened to the collar of your pet or your favorite handbag. The keyrings have a diameter of approximately 1 1/2 inches. Each keychain comes in a sterling silver-plated pouch.