The Zebra SL-F1 is a Slide Ballpoint Pen that features a unique sliding mechanism for the pen's tip. This type of pen is known for its smooth writing experience, quick ink flow, and ergonomic design. Some features of the Zebra SL-F1 include:Slide Mechanism: It has a convenient sliding mechanism to extend and retract the pen tip. This eliminates the need for a cap, providing easy, one-handed operation.Ballpoint: The pen uses a ballpoint tip, offering smooth writing without smudging, ideal for daily use.Ergonomic Design: The pen is often designed to be comfortable to hold, making it suitable for long writing sessions.Ink Type: Typically, Zebra's ballpoint pens use ink that dries quickly to prevent smudging, making it a good choice for both left- and right-handed users.