Small Mano Cornuta keychain. Measures 4 1/2 Inches High and an One Inches Wide. The mano cornuta or "horned hand" is an Italian hand-gesture (or an amulet imitative of the gesture) that can be used to indicate that a man has been cuckholded ("wears the horns") and also to ward off the evil eye. Mano means "hand" and corno means "horn."