6mm Oblique Tip Erasable Fluorescent Liquid Chalk Marker Pen For LED Light Board Glass Blackboard Glossy Surface Art Graffiti - AliExpress
8 Colors/box Erasable Oblique Highlighter Pen Set 6mm Liquid Chalk Fluorescent Neon Marker LED Window Glassboard Pens - AliExpress
Liquid Chalk Markers for Blackboard - Set of 10 Washable Chalk Pens for Chalkboard Signs Windows Glass Black Board-24 Chalkboard Labels Included - 6mm Reversible Tip - Walmart.com