Introducing the Frixion series' new four-color ballpoint pen. Building upon the Frixion 3, this pen boasts improved functionality and design. It features a lift-up clip, which securely holds even thick materials and is built to withstand 100,000 uses (according to PILOT test data). It also allows for the attachment of clip plates and straps. This latest model in the Frixion series offers enhanced convenience for schedule management and more. Slide lever type. Ball diameter: 0.5mm. Ink: Frixion ink (black, red, blue, green).