Dual Tip for Comfort: Flexible, soft brush head for coloring and tinting; 0.4mm fine nib with metallic coating for contours and details, you can go between the thick lines of a super nib and the precise lines of a super fine nib Switch on the fly without having to replace other pens.HIGH QUALITY AND DURABLE: These brush colored pencils come with fine, soft bristles (about 2mm) so the ink can gently roll off the tip, preventing ink from fraying and bleeding. By varying brush pressure, you can achieve medium or strong strokes, styles, sketches and patterns, whatever you choose. Our fine tips measure 0.4mm and are perfect for those requiring precision.COMPLETELY SAFE: These watercolor crayons are made with water-based inks, acid-free and non-toxic. No skipping or ink flow issues with all brushes and fine liners, no matter what you're doing. Ink dries fast without smudgingWIDE USE: These colorful thin line pens are available in 36 vibrant colors, perfect for fine art, journals, den journals, journals, note-taking sketch books, bible notes, math books, homework, invoices, calendar brush labels, art calligraphy and Illustrations, Watercolor Illustrations, and More - Thanks to the colorful hat design, you can easily identify and identify each color.CONSERVATIVE PACKAGING: Nice plastic container with foldable snap closure for easy storage in a backpack. Space saving and portable. Our coloring pen set can be used as a surprise gift for Mother's Day, Children's Day or Birthday Specification:Product name: double head marker penProduct size: length 15.9cmMaterial:plasticcolour:WhitePackage Contents:36 x Colour Felt Tip PensOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.