Sharpie - SAN2168237 From broad strokes to fine details, Brush Twin Permanent Markers do it all. One end features a flexible, brush tip for lines that vary from thick to thin. Other end includes an ultra-fine tip for precise control. Dual-tip markers are perfect for everyday marking, lettering and writing. Markers write on paper, plastic, metal and other surfaces. Intensely brilliant colors create eye-popping, vibrant impressions. Versatile design allows you to transform ordinary surfaces into creative statements.