This is the standard FBI fingerprint card, form No. FD-258 used by the FBI, Bureau of U.S. Citizenship and Immigration Services, and many police agencies for non criminal fingerprinting such as for employment clearances or immigration purposes.
The FD-258 card is 8 inches by 8 inches, with an angle cut on the top left front. It is printed on heavy white paper with blue ink.
These cards can be purchased from the merchants to the right. They are also available elsewhere