Parallel
Exodus 28:16
Swete's Septuagint · Berean Standard Bible
ποιήσεις αὐτὸ τετράγωνον, ἱστοὶ διπλοῦν· σπιθαμῆς τὸ μῆκος αὐτοῦ καὶ σπιθαμῆς τὸ εὖρος.
It must be square when folded over double, a span long and a span wide (note: The breastpiece, when folded over, was approximately 9 inches or 22.9 centimeters in both length and width.).