Bistro Chalk Marker Fine Point Set 4/Pkg - Uchida-Bistro Chalk Marker Fine Point Set: Fluorescent Violet, Orange, Red & White. Use these chalk markers on chalkboards, light boards, windows and windshields. They are opaque, water-based, pigmented and erasable when dry. This package contains four 5 inch long chalk markers in assorted colors. Conforms to ASTM D 4236. Import ed.