What was the capacity of the mouth of Moses's staff when it transformed into a snake before the sorcerers?

Moses' staff was a miracle by which Allah supported his prophethood. By Allah's power, the staff transformed into a mighty serpent that swallowed the magic of Pharaoh's sorcerers, as mentioned in His exalted sayings: "and he cast it down, and thereupon it was a serpent moving rapidly" and "it would swallow up what they had made." As for the details of its size and the capacity of its mouth, these were not mentioned in the Quran or the authentic Sunnah (definition), due to there being no benefit in them.