I used to think it there wasn't anyway that I could learn how to draw with chronic pain, however after much experimentation of different drawing techniques
SumoGrip EE-3000 - Sakura of America
Electric Eraser Review - What to Buy?
Sakura electric eraser refill pack is best known for its strong erasing capability and durability. This pocketsized eraser glides across the paper. Countless professional illustrators, animators and architects rely on the performance of the eraser. Applicable for pastel drawings, cartoon drafts, arts and crafts, drafting, architectural plans and wherever big mistakes are made.
Sakura Electric Eraser Refills for Pencils - 60 count
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SumoGrip EE-3000 - Sakura of America