best seller Fluorescent Marker Pen 1. Fluorescent Marker Pen, 2. Non-toxic and environmental friendly , 3. CE best seller Fluorescent Marker Penhighlighter with pen especial for fluorescent writing boardHigh Brightness neon color, best for indication on mirror, plastic board, Light board, or glass under black light (ultra-violet) or fluorescent lamp etc- Water-base without toxic, No harmful to ...