They were archers who could use either the right or left hand, both to sling stones and shoot arrows from a bow. They were Saul’s relatives from Benjamin:

three years of famine, or three months of devastation by your foes with the sword of your enemy overtaking you, or three days of the sword of the Lord—a plague on the land, the angel of the Lord bringing destruction to the whole territory of Israel.’ Now decide what answer I should take back to the One who sent me.”