 SCP-617 has the appearance of a large granite rock, except that it possesses a zipper in its side. When unzipped, SCP-617 is shown to possess a mouth with teeth that appear similar in appearance and construction to human teeth. X-ray and MRI scans of SCP-617 appear to be unable to penetrate its stone exterior. Similar tests to try and probe SCP-617's internal systems have likewise proven inconclusive. SCP-617's mouth is fully functional and can vocalize sounds as well as be used to consume food. SCP-617 is also capable of limited movement, being able to roll around under its own power.