I can be entertaining until you realize some pieces have been lost.
I have an eye but cannot see.
I am fast but I have no limbs.
What am I?
I look at you you look at me I raise my right you raise your left.
Though I am only two words I have thousands of letters in me
Used left or right I get to travel over cobblestone or gravel. Used up I vie for sweet success used down I cause men great duress.
Break it and it gets better, immediately set and harder to break again.