Zig Memory System Brushables Dual Tip Markers, Blue Features two brush tips, one a popular color from the zig memory system range and the other being a 50 percent tint of that color Ideal for brush layering effects and for creating two-toned coloring effects when rubber stamping Ink is photo-safe, acid free and lightfast Package contains four coordinating brushables markers Conforms to astm d4236 standard; available in blue color