Outstanding eraser. By FAR THE BEST if you write many involved equations, work
with matrices, draw graphs or do other detailed work. This is a SPOT earaser,
meant to earse just one character or two in a long equation without earaing the
rest, or earse a tiny blemish close to a line on the graph. It has clearly made
erasing screens obsolete.
Don't expect to use this for erasing a whole paragraph, or a sentence. You will
use it up it no time. SPOT erasing only. PERFECT for chemistry, mathematics or
It is unfortunate and very surprising that this, arguably the best earaser out
on the market, should come with such poorly designed delivery system. The
delivery system is of the passive type, as in Pentel's Tri-Eraser. Whereas
Pentel's Tri-Earser has a tiangular cross-section allowing the holder's three
large clamps grip the flat sides of a relatively hard eraser, the Hinodewashi's
eraser has the more commom circular cross-section, as a result, the holder's
four small clamps do not have much to hold on. Further more since the earser
itself is soft, the points in contact with the clamps errode quickly. The
bottom-line is this: the eraser is useless in the current configuration.
For the first few uses it works fine, but as the contact points errode, the
eraser element move in and out of the holder with ease while erasing which is
what makes it useless. After trying to find a workaround and even using
different holders, I gave up, cut the eraser in short segment and used them
without a holder. I discarded the holde.
If you are looking for pen-type Hinodewashi earser, try their paper-rolled type
which is an excellent 5-star eraser and delivery system. You can find it at
I have tried many erasers in my work. Any new design, any new material, any new
device ... if I see it I have to try it. And I give you my word that this
eraser is by far the very best that I have tried. Good lord, it even erased
color pencil markings which was incredible.
I just wish that the same polymer came in precision erasers for erasing very
small areas since I usually use a 0.3 mm Pentel pen with the new 2B Stein leads
and write very small. But this is absolutely incredible.