New Smear Block gel technology provides total smear protection across pen, marker, and inkjet inks! Smear protection includes ballpoint, roller ball, and gel pens. Works on all paper surfaces including glossy, rice (Bible pages), and vellum papers. Won't bleed through papers. Won't dry out, because there is no ink! Three bold fluorescent colors: Fluorescent Orange, Fluorescent Pink, and Fluorescent Yellow.