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I've tested 10 erasers...
January 27, 2014
Verified Purchase
I've tested 10 erasers of 6 different brands carried by Jetpens. I use Rhodia dotpads and 0.3mm Pentel Ain Stein B-grade lead. Your mileage may vary.

This eraser erased well in every test I've put it through, along with half of my samples. This one, however, stood out with its remarkable qualities in how the erasing felt. This eraser is wonderfully soft, almost like marshmallow. It slightly adheres to the paper when rubbing against it, as if giving the paper millions of microscopic hugs. It powerfully erases every stroke, from light to dark and from details to large markings. What's more, it clumps up neatly and all of the lead residue is eliminated by the clumps, so the eraser very rarely becomes stained and dirty-looking.

In short, I'd say this is an amazing eraser for its erasing power, marvelous texture, exceptional feel and incredible self-cleaning properties. Get a large one or two, you will not be using anything else.
12 people found this helpful
I tested pretty much...
June 10, 2013
Verified Purchase
I tested pretty much all the block erasers on JetPens, and this one--the Pentel Hi-Polymer Ain Dust-Gathering--was the best: better than the Uni Boxy, better than the Hinodewashi Matomaru-kun, better than the Pilot Foam, better than the other Pentel erasers, etc, etc, etc. In addition to just obliterating pencil marks like nothing else, it is pretty good at gathering its shavings into an easily cleaned up bunch, and although it is fairly soft it even seems to wear down slower than most of the other erasers here. Just excellent. My full eraser round-up article is here if you're interested: http://smbhax.com/cgi-bin/newsarchive.pl?p=1197
11 people found this helpful
This is honestly the...
December 29, 2013
Verified Purchase
This is honestly the best eraser I've ever used. I bought it on a whim because it's so cheap, and I'm actually really glad that I did. It's small (kind of cute) but it erases like a dream. You don't have to push down too hard, and the pencil lines that I had made seemed to disappear completely. I never thought I'd write a review for a freaking eraser, but this one is that good.
6 people found this helpful
This is AWESOME!!!!!!!!!!!!!!!...
July 25, 2012
Verified Purchase
This is AWESOME!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! I have tried the long version of this kind of eraser and this is certainly fantastic.. But, the long one always cracks because of the paper on it. So when u do use the long version of this, take the paper of.... If u get the dark blue one, don't worry that will almost never crack..... I haven't tried it in this shape but I am gonna order It soon..... I would recommend this eraser to anybody......
5 people found this helpful
I love this, I am kinda...
April 28, 2013
Verified Purchase
I love this, I am kinda ashamed to admit now that I only wanted it in the first place to get free shipping... In my defense it did sound like the best deal for the price. Anyway this is great, it erases really well and doesn't leave eraser shavings at all.
4 people found this helpful
I am quite sure there...
April 9, 2014
Verified Purchase
I am quite sure there is magic in this eraser. I have bought Ain erasers in the past, and this one ultimately blows them out of the water. Anything I write is just gone from the page, and it does what erasers are supposed to at a wonderful price point.
1 person found this helpful
This is the best eraser...
September 2, 2013
Verified Purchase
This is the best eraser in existence. Its small size is easy to use. The clumping is better than both the boxy and the pilot foam. Takes very little effort to erase. Five out of five for me.
1 person found this helpful
Thanks to jetpens, my...
March 1, 2016
Verified Purchase
Thanks to jetpens, my package arrived a week earlier. This eraser erases so much leaving the paper look brand new! And for 1 dollar, they make a great pair. 6/5
The best eraser I've...
February 24, 2016
Verified Purchase
The best eraser I've ever used. I read some reviews, and ordered this one and the Uni Boxy. This is by far superior. I like its small form factor, and it erases so perfectly. It really does gather the strands of black lead things. It's the best eraser, lasts a long time, and is a very very good value. 5/5, 10/10.
I bought nearly every...
January 24, 2016
Verified Purchase
I bought nearly every block eraser that Japan makes in a recent shopping binge. As a math major, I need lots of erasers as it is, but I also wanted to determine which ones worked best for my needs. I tested all of the erasers on three different types of pencils: a Pilot Eno color .7, a Pentel graphite .5 and a Pentel color 2mm, and then on three different paper types: Rhodia, an index card, and then plain old American junk copier paper.

The type of paper wound up not mattering with the performance of any of the erasers. What mattered was what they were erasing.

So with that established:

The Ain performed adequately with .5 and .7 leads. It was slightly better than the Tombow Mono, and did much better than its American cousin, the Pentel Hi-Polymer, which is strange, because I thought the Ain and the Hi-Polymer were the same. Guess not.

I didn't notice much dust-gathering going on compared to what some of the other erasers demonstrated.

Ironically, the Ain failed completely with the Pentel 2mm lead. It seemed to take off a layer or two of the color, and smear the rest around. Just awful, but, hey, that might prove useful as a blending device for art work, for those who do that sort of thing. It's not what I need from an eraser, though.

Perhaps I got an older eraser, but I'm not about to waste anymore money on this line to find out.
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