Exodus 28:24

ונתת את שתי עבתת הזהב AND THOU SHALT PUT THE TWO עבתת OF GOLD — These are the selfsame שרשרת גבלות “chains on the ends” which are written about above (v. 14). There, however, it did not specify the place where they were to be fixed on the breast-plate, stating only that the ends were to be put on the settings; now it tells you that one should insert them in the rings which were on the breast-plate. And you can be certain that these are identical with the former ones, because in the section אלה פקודי they are not mentioned twice (in two separate paragraphs).

וְנָתַתָּ֗ה אֶת־שְׁתֵּי֙ עֲבֹתֹ֣ת הַזָּהָ֔ב עַל־שְׁתֵּ֖י הַטַּבָּעֹ֑ת אֶל־קְצ֖וֹת הַחֹֽשֶׁן׃

And thou shalt put the two wreathen chains of gold in the two rings which are on the ends of the breastplate.