2 of 2 people found the following review helpful
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This review is from: Pentel BK77 Superb Ballpoint Pen 0.7mm Tip Writes 0.35mm Line Width Black Ink Pack of 12 (Office Product)
These are the greatest pens for writing and for sketching - very sensitive, varied line quality with dependable ink flow. That's why I buy them two boxes at a time!