The Gelly Roll Retractable Classic Gel Pen by Sakura is a high-quality ink roller known for its precise 0.4 mm line width. This set includes a total of ten pens, with one pen offered as a free item. The pens feature an elegant transparent design and provide a deep black ink color, making them ideal for various writing and drawing techniques. The use of plastic as a material ensures a pleasant feel and durability. The click mechanism allows for easy and quick opening and closing of the pens, making them particularly user-friendly. This set is perfect for creative projects, note-taking, or filling out documents, offering a smooth ink flow for a seamless writing experience. Gelly Roll pens are an excellent choice for anyone who values quality and precision.