Koils of the steel ball unwind

KOILS OF THE STEEL BALL UNWIND
It's a big round steel ball
Koil didn't find it at the mall
It's very round and heavy
Like a cannonball Chevy
How will I polish it?
It has a thin coat of rust
Koil says sandpaper it
It will scratch it I trust
It's worth it's weight in steel
It's as solid as my heel
Is this really for real
It has on small pit or two
Like the Death Star in space it flew
But this object is a dense mass
Better not touch it or I'll kick your elbow