A large size putty eraser which may be moulded to a fine point for minute erasures.
STAEDTLER Karat Artists Art KNEADABLE Putty Rubber ERASERS [Pack of 2] by Staedtler : Office Products
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Winsor & Newton Cotman Portable Travel Watercolor Paint Set Complete Pocket Set 16 Half Pans Watercolor Brush Eraser Palette - AliExpress
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Winsor & Newton 7030618 Large Putty Rubber for sale online
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Winsor & Newton Cotman Portable Travel Watercolor Paint Set Complete Pocket Set 16 Half Pans Watercolor Brush Eraser Palette - AliExpress
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The Best and Worst Eraser Test Against Five Different Mediums — The Art Gear Guide
Beginner's material pack