Product Description: Linear Roller Color Pens Highlighters with 6 Different Curve Shapes (Set of 6) Package Contains: It has 6 Piece of Linear Roller Color Pens Material: Plastic Color: As per availability Dimension: 14 X 7 x 2cm Weight: 200gm Additional Information: Our Curve Highlighter Markers Pen Set - 6 Vibrant Colors Fine Liner Pen Curve Highlighter Come with 6 pattern-colored curve pens, which lets you express yourself with exquisite mark lines and riots of color. The curve pens are made of high-quality materials, which makes our pens glide smoothly. These are fancy little markers here! The flowing highlighter pens are super colorful and fun to use. Perfect for arts and crafts, Projects, Coloring Books, Writing Journaling, Drawing, and Scrapbooks. Best birthday return gift party supplies option. Use Tips: 1. Fluorescent ink. Do not add other ink to the curved highlighter pens. 2. Not edible, keep the colored curve pens away from fire. 3. After writing, please cover and keep it properly to prevent volatilization. 4. It is forbidden to strike hard objects to avoid damage. pen set USE TIPS Here are some tips when using the curve pens: 1.Work well on slightly thicker paper.some thick paper can be padded at the bottom. 2.Because of the roller design, the pen should be perpendicular to the paper to get a complete pattern. 3.If the pattern is not very clear,you can press the pen head slightly to get a more complete pattern. 4.At the beginning, there was not much ink on the pen tip. You need to paint more times to get a more perfect pattern. 5.You can try to change the rolling direction of the wheel to find a smoother painting effect.