The high priest's ephod — a reversed apron which covered the back — and its precious-stone-studded shoulder straps were made. The High Priest's Choshen Mishpat ("Breastplate of Judgment") was assembled. It contained four rows of precious stones, each row containing three stones. Artisans engraved the names of the Twelve Tribes of Israel upon these twelve stones. The Choshen Misphat was then secured by straps that connected it to the ephod.