Exodus 28:16

Overview - Exodus 28
1	Aaron and his sons are set apart for the priest's office.
2	Holy garments are appointed.
6	The ephod and girdle.
15	The breast-plate with twelve precious stones.
30	The Urim and Thummim.
31	The robe of the ephod, with pomegranates and bells.
36	The plate of the mitre.
39	The embroidered coat.
40	The garments for Aaron's sons.

Exodus 28:16  (King James Version)
Foursquare it shall be being doubled; a span shall be the length thereof, and a span shall be the breadth thereof.