Pk/4 Tombow MONO Knock Elastomer Eraser Refills, 3.8 mm Round Tip
Pack of 4 eraser refills for Tombow Knock eraser with a 3.8 mm round tip. Non-abrasive elastomer eraser removes pencil lead markings cleanly and completely without damaging paper. Useful for subtractive drawing, sketching, drafting and precision correction. Made in Japan.