Goodplus Color Liquid Chalk Marker Pens 8-pack - 3mm Regular Tip - Brilliant Bold Colors Seven color house Eight kinds of color liquid chalk marker(4.5mm Precision Tip)(Eight Pack) Dusty chalk is for amateurs, use liquid chalk for that professional edge.Create fantastic, eye-catching, attention grabbing displays! These markers are completely versatile. They can write on any surface... Mirror, glass and even metal. The only limit is your creativity! The Liquid chalk in SuperChalks is completely dust free... Simply wipe with a damp cloth and watch as it disappears without the regular smudge and mess! Concentrated liquid prevents running and dripping Non-toxic and netural smellUsed for the first time, please put the pen tip downwards pressure for many times