Compiled from 6 sources; we haven't tested this product ourselves yet. How we research
Quick answer
The Sakura SumoGrip is a black foam block eraser from Sakura of America. Its open-cell foam grabs and traps graphite with light pressure, Sakura says, and the crumbs roll into strands that are easy to throw away. The small B80 measures about 54 × 22 × 11 mm and sells in 3-packs in our $ band.
On this page10 sections
The SumoGrip B80, about 54 mm long (drawn at 1 mm = 4 px).
Black microporous (open-cell) foam eraser, phthalate-free (Sakura of America)
Price range
$under $5 per item
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Notes on these facts
Made by Sakura Color Products Corporation (Osaka); sold in the US by Sakura of America. Country of manufacture not stated: Sakura of America's SumoGrip Eraser page (read in full on October 22, 2026), JetPens and Amazon US don't state a country of manufacture. Sakura's Japanese site doesn't list the SumoGrip at all. Check the package. Price: example listing.
Price bands are typical US retail, checked October 2026.
Key takeaways
Sakura gives the small B80 as 2.125 × 0.875 in (about 54 × 22 mm); JetPens lists it 1.1 cm thick.
The large B300 is 3.125 × 1.5625 in (about 79 × 40 mm), per Sakura's Amazon listing.
Sakura says the foam lifts graphite from B to 2H with minimal pressure and is free of harmful phthalates.
The B80 3-pack (model 50258) had 811 ratings on Amazon US on October 22, 2026.
Sakura says it combines its Foam W eraser with an earlier hybrid-matrix formula.
What is the Sakura SumoGrip eraser?
It’s a black foam block eraser sold by Sakura of America, the US arm of the Japanese art supply maker behind the Pigma Micron and Gelly Roll. Sakura says its open-cell foam grabs and traps graphite, so it needs little pressure and leaves the page clean.
JetPens gives the SumoGrip an honorable mention in its June 2026 eraser guide. On Amazon US, the B80 3-pack ranked #35 in standard pencil erasers with 811 ratings when we checked on October 22, 2026.
Sakura SumoGrip B80 specs
Spec
Value
Brand
Sakura (Sakura of America in the US)
Model
SumoGrip B80, 3-pack 50258
Size
2.125 × 0.875 in, about 54 × 22 mm (Sakura); 11 mm (0.4 in) thick (JetPens)
Large size
B300, 3.125 × 1.5625 in, about 79 × 40 mm (Sakura)
Material
Black microporous open-cell foam (Sakura)
Erases
Graphite from B to 2H (Sakura)
Safety
No harmful phthalates; meets ACMI non-toxicity standard (Sakura)
Price band
$ (under $5 per eraser)
Made in
Not stated
The two SumoGrip sizes, with a Mars plastic outline for scale.
How is a foam eraser different from a plastic one?
The foam is full of tiny connected cells that pick graphite out of the paper’s grooves, where Sakura says ordinary white PVC erasers leave particles behind. Sakura compares the reticulated foam to ultra-fine sandpaper that reaches into the small pits of the paper surface.
Sakura says the SumoGrip combines its existing Foam W eraser with an earlier hybrid-matrix formula; Sakura’s Japanese site still lists a Foam Eraser W (フォームイレーザーダブル). It calls the structure polymeric and hard, yet soft to the touch.
Why is the SumoGrip black?
So it doesn’t look grubby after use, and so it leaves no gray smears. Sakura says the black eraser keeps looking clean while picking up graphite, and that no black smudges are left behind.
White erasers show every pass of graphite, and a dirty white eraser can smear gray back onto the page. If you prefer a white block, the Staedtler Mars plastic and Tombow MONO are the usual choices.
What happens to the crumbs?
They roll into strands instead of scattering as dust. Sakura says this makes clean-up easy: you brush the strands into a pile and throw them away.
If gathering crumbs is the main point for you, the Tombow MONO Dust Catch is made to clump them too. For lifting highlights out of charcoal or pastel without rubbing, a kneaded eraser such as the Faber-Castell Art Eraser does a different job.
Which SumoGrip should you buy?
The B80 for a pencil case, the B300 for the drawing desk.
B80
B300
Size
About 54 × 22 mm (2.125 × 0.875 in)
About 79 × 40 mm (3.125 × 1.5625 in)
Sold as
3 on a blister card (Amazon US)
Not stated
Best for
Notes, school, small corrections
Large areas, drafting, art
Sakura also sells a SumoGrip electric eraser kit (EE-3000) and a SumoGrip mechanical pencil with its own eraser refills, which are separate products.
Where is the Sakura SumoGrip eraser made?
Sakura doesn’t say on its US product page, and JetPens and Amazon US don’t either. Sakura Color Products is based in Osaka, and Sakura of America distributes the SumoGrip in the US.
Sakura’s Japanese eraser list doesn’t include the SumoGrip, so it appears to be a line made for the US market. Check the package for the country of manufacture.
Frequently asked questions
Why is the SumoGrip eraser black?
So it never looks dirty. Sakura says the black eraser hides the graphite it picks up and leaves no black smudges on the paper.
What sizes does the SumoGrip eraser come in?
Sakura sells the small B80, about 2.125 × 0.875 in (54 × 22 mm), in packs of three, and the large B300, about 3.125 × 1.5625 in (79 × 40 mm).
Is the SumoGrip eraser good for drawing?
Sakura lists pastel drawings, cartoon drafts, drafting and architectural plans among its uses, and says it lifts graphite from B to 2H.
Does the SumoGrip eraser leave crumbs?
Yes, but Sakura says they form strands rather than loose dust, so they're easy to pick up and throw away.
Is SumoGrip the same as the SumoGrip pencil eraser refill?
No. The block eraser is a separate product from the small refills for the SumoGrip mechanical pencil, which Sakura sells as their own item.
Is the Sakura SumoGrip eraser non-toxic?
Sakura says it contains no harmful phthalates and meets the ACMI non-toxicity standard.
Is the Sakura SumoGrip eraser made in the USA?
Sakura doesn't say. The brand is Japanese and the US distributor is Sakura of America; check the package for the country.
