Kuretake-Zig Illumigraph Marker Set. This marker features a 6mm tip, is high flourescent and is wet-erasable. Ideal for use on plastic, glass, metal, white board and a variety of other surfaces. Perfect for writing broad letters on signs, boards and more especially under UV light! This package contains 8 Illumigraph 6mm Tip Markers in assorted colors. Conforms to ASTM D4236. Imported.