Black Glass Board Dry Erase Markers Pens,White Chalk Markers for Chalkboards, Signs, Windows, Blackboard,Glass,Reversible Dual-Tip Design Glass Blackboard Pens(White, 10 Pack)

About this item ✅【Professional Glass Board Markers】:5 different colors: black, white, red, blue, yellow.The free-flowing liquid ink system delivers unmatched color on glass boards.Move quickly from one project to the next with these easy-to-erase markers. Write, erase, and rewrite, instantly. The smooth ink easily wipes away, leaving a streak-free, clean surface. ✅【How To Use】:①Shake the marker about 30 seconds.②Press and pump the tip down on a surface until the liquid chalk flows into the tip.③The tip starts as yellow but becomes colored as you press and pump.It take a little bit to start the markers so please be patient. ✅【Freely Switchable Nibs & Smooth Writing】:One of the best parts about our markers is that one marker can be either thin tip or thick tip. Just pull the tip straight out and reverse it to have your choice! You can draw a fine line or a thicker bolder line.Provide smooth, consistent ink flow to help you easily create notes and drawings that stand out on dry-erase