Amazon.com : Chalktastic Chalk Markers, Chalkboard Markers with Reversible 7mm Fine or Chisel Tip, Erasable Liquid Chalk Markers for Menu Board, Glass, Blackboard, Window, Signs, Bistro, Car - 8 Pack Classic : Office Products
Amazon.com : Shuttle Art Chalk Markers, 24 Vibrant Colors Liquid Chalk Markers Pens for Chalkboards, Windows, Glass, Cars, Erasable, 3mm Reversible Fine Tip with 30 Chalkboard Labels for Office Home Supplies : Office Products