The Pengel EnerGel X Retractable Gel Pen is a high-quality writing instrument suitable for both home and office use. With a 0.7mm tip size and medium nib type, this pack of 3 black rollerball pens by Pentel offers a smooth and consistent writing experience. Made in Japan, these retractable pens are reliable and convenient for everyday use. Whether for writing notes or completing tasks, these gel pens provide a comfortable and efficient writing experience.