Easy To Sharp. Designed to aid legibility. iDENTical pencils, create smooth, clear lines. Break-resistant medium-soft lead. PMA certified non-toxic, safe for use. Ideal For Dental student,dentist, seminars. Best Gift for the dentist. Extra dark writing pencils. Each pencil comes with a soft, smudge-free, latex-free, rubber eraser secured to the end by a standard metal band, making it easy to quickly and cleanly wipe away mistakes or unwanted marks.