Adam Clarke on 1 Samuel 1:24

With three bullocks - The Septuagint, the Syriac, and the Arabic, read, a bullock of three years old; and this is probably correct, because we read, 1Sam 1:25, that they slew את הפר eth happar, The bullock. We hear of no more, and we know that a bullock or heifer of three years old was ordinarily used, see Gen 15:9.

One ephah of flour - Seven gallons and a half.

A bottle of wine - נבל יין nebel yayin, a skin full of wine. Their bottles for wine and fluids in general were made out of skins of goats, stripped off without being cut up; the places whence the legs were extracted sewed up, as also the lower part; and the top tied. She the notes on Gen 21:14, and Mat 9:17. These three things, the ox, the flour, and the wine, probably constituted the consecration-offering.