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Amazon.com: TENFON 1 box of 12 pens 0.5mm office gel pen student Pen Black Signature fountain pen, 146.5x15 mm : Office Products
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In a box of 12 pens, a total of 3 are defective. If a customer buys 2 : Problem Solving (PS) - Page 2
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Amazon.com: Pentel EnerGel PRO Permanent Gel Pen, (0.7mm) Medium Line, Blue Ink, Box of 12 Pens (BLP77-C) : Office Products
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