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The eraser erases very...
March 6, 2010
Verified Purchase
The eraser erases very well, but the mechanism that holds the eraser slips occasionally, allowing the eraser to slide back into the holder. I need to extend the eraser often to compensate. The mechanism only slips when I hold the eraser perpendicular to the paper and am pushing down hard. If you only hold the eraser at an angle to the page, friction holds it in place well and you won't have any slippage problems.

If you are considering this product, the Tombow Mono Knock 3.8 is also worth a look.
2 people found this helpful
I really love this eraser....
July 18, 2012
Verified Purchase
I really love this eraser. I've had many different kinds of erasers, and this works the best when writing essays(timed) and drawing. It erases mechanical lead better than a wooden pencil. The only problem I had was the eraser ran out fast for me! Good thing they sell the refills!
1 person found this helpful
The e-knock eraser is...
May 20, 2015
Verified Purchase
The e-knock eraser is a pleasure to use.
This pen-type eraser...
May 13, 2015
Verified Purchase
This pen-type eraser has replaced the traditional block eraser in my pen case. It fits well among the pens and is fun to use for erasing a letter or two. I wouldn't use this to erase a wide area, this eraser is meant for correcting small mistakes.
Shamalama Dingdong
Works well, but leaves...
May 12, 2015
Verified Purchase
Works well, but leaves a fair amount of residue.
I prefer this thin version...
April 28, 2015
Verified Purchase
I prefer this thin version over the broad one because my writing is smaller and I have more control over what I'm erasing with this eraser.
Good eraser. Erases clean....
April 21, 2015
Verified Purchase
Good eraser. Erases clean. Great price.
Perfect eraser size and...
March 23, 2015
Verified Purchase
Perfect eraser size and I love that it's refillable! I use this all the time.
The eraser is good but...
March 8, 2015
Verified Purchase
The eraser is good but sometimes it smudges pencil marks and that is harder to erase. Other than that, I would recommend it. The body is sturdy and doesn't break unless stepped on (or something similar).
Does exactly what you...
February 28, 2015
Verified Purchase
Does exactly what you would imagine. I use ain stein 2B lead and find myself reaching for this quite often. I have the Kokuyo Student eraser that I tend to use as my desk, but while in class etc, I always reach for this E-Knock. I'm a math student (and tend to write fairly small in general) so this allows me just erase with some precision in comparison to a standard block eraser
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