Make a statement and send a message with the Bistro Chalk Marker! These great markers are opaque, water-based, pigmented chalk ink that write smoothly and dry like chalk! The Bistro Chalk Markers are perfect for chalk drawings, advertising/specials boards, window decorations and displays, and so much more! This product is perfect for writing on chalk boards, light boards, windows, and windshields and is erasable with just a damp cloth!