Wonderful erasers! They...
December 6, 2014
Wonderful erasers! They provide a marvelous complement to the Staedtler 52820
eraser holders and the Staedtler 528 55 eraser refills. The Uni E-Knock Eraser
Refills fit the Staedtler holder.
The Staedtler erasers are stiffer and will wear some lighter papers. For those
jobs I use the Uni E-Knock Eraser Refills and get the job done with no damage to
my paper. Excellent eraser.
Too bad I am not so enthusiastic about the accompanying holders!
The only problem I have with the Uni E-Knock holders is that they are
constructed of cheaper plastics than the Staedtler holders. I purchased a
(http://www.jetpens.com/Uni-E-Knock-Eraser-Black-Body/pd/2899) in June of 2014.
It cracked in September. I have Staedtler holders that I purchased back in the
1990's that are showing no signs of wear or tear except for the print being