ACCOMPLISH CURVE LINESHaving trouble with drawing wavy lines using normal colored pens Try this specially made roller marker - able to create various elegant mark lines with one single pull, none of the trouble, all of the fun. TIPSTip marker pen design, roller end for drawing mark lines. Combine them youll get a great tool for your study artwork. QUICK-DRYING PENOur marker pens are all quick-drying ink, which dries quickly and writes clearly and smoothly. The other headband pattern is also very easy to use. You only need to place the pen under the text you need to mark and slide it gently. The operation is convenient and simple, and the ink is also quick-drying. MULTI-FUNCTIONALThis beautiful pen set makes it easy for all the family to use for card making, crafts, coloring books, school projects, DIY letters, and more. Also can be a great gift for Birthdays, Easter, Childrens Day, Back to school, etc. WIDE APPLICABLE OCCASIONSYou can use the fine points of the journal pens to write diaries, letters, cards, make notes, scrapbooks, and so on, while the other distinctive tips are nice for underlining some important parts and drawing some beautiful patterns, practical and necessary both in study and daily life. Specification Material: Plastic, Ink Color: As Shown Size: 135 x 70mm/5.31 x 2.76in Package 1 Set Curve Highlighter Pen (6pcs)