The Red Ruler
I am the highest rank
Unless you use the first
I am full, never blank
Sometimes I make you burst
I am surely one of a kind
The ruler of a formal wear
A man of wisdom you might find
In your hand I’m very fair
I have three good friends
All with swords in their hands
Our bond never ends
But I am different in thy lands
What am I?
Check Braingle.com for the answer.