Sharpie Clearview Highlighter features a unique, see-through tip to eliminate blind spots while highlighting text and to clearly define when to stop. The chisel tip delivers precise highlighting for thin and thick lines. Smear Guard ink technology resists smearing of many pen and marker inks (let ink dry before highlighting). See-through tip is AP Certified.Sharpie Clearview Highlighter features a unique, see-through tip to eliminate blind spots while highlighting text and to clearly define when to stop. The chisel tip delivers precise highlighting for thin and thick lines. Smear Guard ink technology resists smearing of many pen and marker inks (let ink dry before highlighting). See-through tip is AP Certified.