When we devote so much time to pencils, it seems only fitting that we consider our erasers. In the Eraser Cup, our goal is simple: to find the best block eraser.

This championship is directly inspired by Dave’s amazing Lead Cup.



  • Caran d’Ache Technik
  • Faber-Castell Dust-Free (not pictured)
  • Faber Castell Dust-Free Vinyl (not pictured)
  • Kokuyo Campus B/HB
  • Kokuyo Campus 2B
  • Pentel Hi-Polymer
  • Pentel Hi-Polymer AIN
  • Pentel Hi-Polymer AIN Dust-Gathering
  • Pentel Hi-Polymer AIN STEIN
  • Pilot Foam
  • Rotring Rapid B-20
  • Sakura Foam
  • Seed Colorful Radar Light
  • Staedtler Mars Plastic
  • Tombow Mono (not pictured)
  • Tombow Mono Light
  • Uni Boxy
  • Uni Nano-Dia “For Kids”


THE TRIALS: We will be subjecting each block eraser to a series of rigorous tests in order to crown one chunk of rubber victorious. The winning eraser will be chosen based on the extremely scientific “which is better” test. In testing, we will primarily be considering eraser power (how well it removes graphite from paper) and ease of erasing (speed of removal, level of smudging, force necessary, etc.). Other minor considerations such as appearance will also be factored in. Below, you’ll find a list of the erasers with a brief description and what we liked and didn’t like.

1 – Caran d’Ache Technik

We have said that we mean to find the best eraser, not necessarily the most economical eraser. This is good news for the Caran d’Ache.


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2 – Faber-Castell Dust-Free

3 – Faber-Castell Dust-Free Vinyl

4 – Kokuyo Campus HB/B and 2B

The Kokuyo Campus erasers have long been among my favorites. There are two Campuses, one meant for erasing HB and B lead grades, the other for 2B.

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According to Jeffrey (unwoundmouse), the kanji beneath “Campus” says “For elementary school students”. I carry it unashamed. The looks are solid enough, in my opinion. They don’t exactly stand out, and look rather foreign.

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On the reverse, the Campuses have their own little diagram of the eraser peeling lead dots from paper, a little reminiscent of hemoglobin or ATP. Their young target audience is affirmed by the name boxes. As far as erasing power goes, the Campuses are certainly very good. They are smooth on paper and speedily remove any trace of graphite. My question is this: how do they perform with their respective lead grade specialties?

5 – Pentel Hi-Polymer

The Pentel Hi-Polymer is just a classic. This eraser has been in production a remarkable length of time, and may be the eraser I see most commonly of all. How does it perform when pitted against other more specialized block erasers?

On Jetpens, this pack of three Hi-Polymers is only $2.60. Considering their size, this is insane value.

On Jetpens, this pack of three Hi-Polymers is only $2.60. Considering their size, this is insane value.


I must admit I was skeptical because of its popularity, but the Hi-Polymer performs very well.