BIC Products - BIC - Mark-it Retractable Permanent Marker, Black, Dozen - Sold As 1 Dozen - No cap, just click! - Provides easy one-hand use. - Fine point tip perfect for marking. - Seal Guard defends against dry outTM. - Acid-free ink (no added acid; no measureable pH.) Marker_Type - Permanent Colors - Black Tip_Type - Fine Compliance_Standards - AP Certified Nontoxic