It Took Five Years to Perfect the Recipe for This Transparent Eraser gizmodo.com

That even applies to something as seemingly mundane as office supplies, as is evident by this new see-through eraser that enhances precision by providing an unobstructed view of what’s actually being erased.
AdvertisementTransparent erasers aren’t a new idea, I can remember excitedly buying them in a rainbow of bright colors while prepping for school to start one year.
But the dream quickly turned into a nightmare when I discovered the erasers were better at shredding paper than actually removing pencil marks.
According to a Seed representative who spoke to a reporter at Japan’s FNN Prime, it required five years of research and development to perfect the recipe for the company’s new Clear Radar eraser that delivers the best of both worlds in terms of performance and transparency.
The company also points out that over time dirt and other debris may further cloud the eraser, but it should still remain transparent enough to allow users to more accurately see what they’re actually erasing.