Per 
Item #: SCP-####
Object Class: Safe
Special Containment Procedures: SCP-#### is kept securely in locker 141 on subbasement three of site 5. Researchers with level three clearance may request access to SCP-#### by filling out form ####-A at least one week prior to the needed access. Any new properties discovered during research must be reported to Dr. Long immediately.
Description: SCP-#### is a ring of dark marble. It's inner diameter is about 2 cm, it is about 5 mm deep and about 2 mm thick.1 SCP-#### came into The Foundation's possession in early 19██ as a result of a raid of a GoI ███████████ safehouse. The origin of SCP-#### is unknown.
If SCP-3141 while it is slowly rolled, the surface appears to shift. Additionally, D-rank subjects who have worn the ring reported feeling an uncomfortable tightness, regardless of finger size.
For several months those were the only anomalous properties of SCP-#### identified. However, careful measurements made by Dr. Long while cataloging SCP-#### for long-term storage identified a further anomaly: the ratio of the circumference of SCP-#### to its diameter is exactly #.###. Several geometrically inclined Foundation researchers have used precision measuring tools to verify this measurement. They have concluded that the probability that the ring has the generally accepted value for pi is less than 3 * 10-7.
