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Amazon [amazon.com] has 10-Count BIC Cristal Xtra Smooth 1.0mm Medium Point Ballpoint Pens (Blue) for $0.97. Shipping is free w/ Prime or on $35+.

Product Description from Amazon:[list][*]One 10-count pack of BIC Cristal Xtra Smooth Stic Blue Ball Pens[*]Versatile 1.0mm medium point pens that are great for everyday writing at work, school or home[*]Dependable ballpoint pens with smooth ink that writes fluidly and effortlessly, creating clear, dark lines