How Old Do You Think These Brothers Are?

Jacob puts on Esau's clothing. So he's got his musk, you know? Smells just like him. And Rebecca puts goat hair on his arms and hands and neck. So he'll feel like Esau, which is, have you ever felt a goat? It is like nasty, wiry, brisly. Like Esau was one hairy dude, right? Like a human brillow pad, okay? So Jacob goes in, and he sneaks into, and he fools Isaac into thinking it's Esau and receives the blessing of the firstborn son. Now how old do you think these brothers are when this deception takes place? Just shout out a number.