21. The tissue, roughly the size of a pencil eraser , is shipped to a lab to be grown in culture dishes. 22. Not the pointed ones, which are just leaf buds, but the rounded ones, about the size of a pencil eraser ? 23. The translucent display was about the width of a pencil eraser and sat in the middle of one eyeglass lens. 24. For a pointing device, the 5100 uses the now-familiar nub that looks like a pencil eraser jammed into the keyboard. 25. The tumor was a piddly little thing, no bigger than a pencil eraser , but it had plugged up the bile duct. 26. Muenter tried to kill himself on the night of July 5 by slashing his wrist with a pencil eraser metal retainer. 27. Diameter : Any lesion that is wider than 1 / 4 of an inch, about the size of a pencil eraser . 28. The gold sunburst at the center of the flag is anchored by a yellow diamond about the size of a pencil eraser . 29. -- Diameter : The diameter of the mole is larger than 6 millimeters, which is about the diameter of a pencil eraser . 30. Flynn's tumor, which was a large mole, bigger than a pencil eraser , was removed in 1984 and he has had no recurrences.