Professional Double Line Outline Marker Pen

Product Pain Points & Core Advantages Traditional hand-drawn outline art requires two separate pens to create double-line effects, which wastes time and creates uneven lines. Our Professional Double Line Outline Marker Pen solves this hassle. As creative Specialty Markers, it releases two different colors simultaneously with one single stroke, forming neat 3D double lines effortlessly. The smooth water-based ink flows steadily without paper bleeding, ideal for stationery retailers and bulk art supply orders. Product Details & Features This transparent package contains 6 pieces of double line pens with white slim barrels. Each pen has dual ink channels and 0.5mm fine tips for consistent delicate double-line patterns. Colorful printed labels on the barrel help users quickly identify each style. We also supply Watercolor Pens for blending painting and colorful art creation. Application & Full Product Line They work great for journal decoration, greeting card making, poster le…

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