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. These pencils are a great addition to your classroom home or office. This pack contains 5 BIC Xtra-Precision Mechanical Pencils. *Source: The NPD Group/ Retail Tracking Service / U.S. Actual Unit Sales (Retail & Commercial Combined)/ Jul 2016-Jun 2017