Skilcraft Chisel Tip Fluorescent Highlighters Jumbo-size, Tube-type Highlighters Offer A Durable Chisel-tip For Fine, Medium Or Bold Strokes. Quick-drying Transparent Ink Highlights Important Text In Books And On Paper. Premium Quality Highlighters Deliver Bright, Fluorescent Ink. Ink Is Acmi Approved Nontoxic And Bpa-free.