- 15g Ink inside it - 10mm Chisel 6 color avalaibe Marker Pen especial for fluorescent writing board - Water-based, dry-wipe prescription. - Easy to wipe off with wiper, tissue paper - High 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 skin, - Confoms to ...