This pack have selected the most commonly used 12 kinds of color sets. Their special inks are both permanent and water resistant, never have to worry about blurring yours artwork. Use the easy glide ink to maintain smooth lines in a flowing, regular pattern! Features - ColorAssorted Color - Material: Plastic. - Size: Approx. 15 * 1 * 1cm/ 6 * 0.4 * 0.4 inch (L*W*H). - Provide you with , long-lasting, vibrant colors that will not skip, smear, or fade. - Scientific ink formulations with standard production process. Make the gel pens are safe for you and children as they are both and . - Great gel pens for both kids and adults coloring books, sketch, draw, color, doodle, write and get creative in a fun and skilled way. - Perfect for writing on Greeting cards, Party invites, Letters to , gel highlighter, arts crafts, scrap booking and so on. Package list: 12 Packs Color Gel Ink Pens Set 0.5mm Tip Range Colour Pen Kit for Books Draw Write