Ideal for detailed work or any time extra tidiness and accuracy are needed the BIC Xtra-Precision Mechanical Pencil comes with fine 0.5mm leads that lay down smoothly do not smudge and erase cleanly. The #2 lead advances easily with a simple click of the eraser and is perfect for standardized tests. Always sharp ready and accurate these pencils eliminate the need to sharpen constantly saving you time. The fun metallic barrel adds some color to your classroom home or office. This pack contains 10 BIC Xtra-Precision Mechanical Pencils. *Source: The NPD Group/ Retail Tracking Service / U.S. Actual Unit Sales (Retail & Commercial Combined)/ Jul 2016-Jun 2017