Butterflow pen comes with a special formulated ink to provide a smooth writing experience. Having a tip size of 0.7 mm ensure fine writing and pattern grip provides anti-slippery hold for comfortable writing. Combination of an attractive foil design, Cello pens are the No. 1 choice of the consumers in India, selling over 5 million pens every day! Cello also exports a broad portfolio of products to North America Europe, Africa, Middle East and Asia. , , Our manufacturing expertise, consumer requirements, constant research on tips and inks and offering of broad range of writing instruments makes the company the market leader in the category. The best way to gain and keep consumer loyalty is to provide products that offer the same quality of use from start to finish. Get a flawless handwriting with the Cello ball pen. Designed to provide an effortless writing experience. The ink offers gentle and comfortable writing