Multi-Color Highlighter Fluorescent Marker Pen DryErase/LED/WHITE Board. PRESS DOWN HARD and hold to allow ink flow to tip before use. * 1. Write on any surface! glass, metal, windows, light boxes, paper, dry-erase boards, glass surfaces, marker boards, flip boards. * 2. Colorful, lasting and do not fade * 3. Extra-bright, stand out against any background. * 4. Pen-style highlighter let you write clearly without ink bleed-out to blur lines. * 5. Easy snap-cap prevents markers from drying out. * 6. Environment-friendly, do not harm the skin. * 7. Wash off easily, without leaving any traces. * 8. Tip measures 1/8" , pen diameter is 3/4" , length is 5.5".