מֹ֧אזְנֵי צֶ֣דֶק אַבְנֵי־צֶ֗דֶק אֵ֥יפַת צֶ֛דֶק וְהִ֥ין צֶ֖דֶק יִהְיֶ֣ה לָכֶ֑ם אֲנִי֙ יְהוָ֣ה אֱלֹֽהֵיכֶ֔ם אֲשֶׁר־הוֹצֵ֥אתִי אֶתְכֶ֖ם מֵאֶ֥רֶץ מִצְרָֽיִם׃
Magkakaroon kayo ng tapat na timbangan, tapat na mga panimbang, tapat na efa, at tapat na hin. Ako ang Walang-Hanggan na inyong Diyos, na naglabas sa inyo mula sa lupain ng Egipto.
Rashi
אבני צדק are stones used for weights wherewith one weighs.
Siftei Chakhamim
That is a dry measure. Because it says [regarding manna] (Shemos 16:36), “The omer is a tenth of an eiphoh.”