HI-LITER Pen Style, Chisel Tip, Assorted Colors, Pack of 4 (23545) Assorted Color Pack: 1 Fluorescent Green, 1 Fluorescent Pink, 1 Fluorescent Purple and 2 Fluorescent Yellow Bright Fluorescent color ACMI certified to meet Federal standards of non-toxicity; safe for office, school or home. Sturdy clip for your pocket, organizer or binder. Durable plastic chisel tip for smooth highlighting.