Ode to a Blunt Eraser

1
Immediately exposed from the pack
Impeccable and sound
None can forgo your purity
Nevertheless, with a solitary splotch
It is ended 
2
That lone blotch
Impairs it all
The precision vanished
Even so, you are decent
But eternally imperfect
Now and forever 
3
Now that you have been expended
Numerous and countless times before
Nothing can renounce
The flaws you now embrace
The only affair lingering to do,
Continue to be depleted
Until your existence is consumed. 
4
Gaze at yourself now
Nothing enduring but a barren silhouette
Being used to your fullest extent
You can do naught to halt this
You are practically washed out 
5
None remaining of you
You can no longer be run down
Inept and worthless
For most of you is wretched
But to someone,
You are still seamless.