Horse Twin-Tip Permanent Marker Blue. Made from high-quality materials, this permanent marker features bold, fast-drying ink that delivers smooth writing and long-lasting results. It comes with two tip sizes for versatile writing and marking, and can be used effectively on a variety of surfaces. - Name: HORSE Twin Permanent Marker Pen Blue x 12 - Brand: HORSE - Unit Amount: 12 unit(s) How to Preserve: Store in a cool, dry place away from direct sunlight.