Express yourself with pentel's Color Shades writing pack containing our best selling product lines. The EnerGel-X retractable gel pen - left handers love it - no smears, no smudges, no globs. Latex-free grip. 0. 7mm tip writes medium lines. The RSVP rat is a sturdy, well-balanced, retractable ballpoint pen featuring a latex-free grip. It can write for almost a mile! The Pentel wow! Gel pen features a unique triangular-shaped barrel & latex-free grip that makes it easy to hold and keeps pen from rolling off desks. Permanent, waterproof, fade-proof and acid-free ink for a lasting impression. Click top to advance tip; click side button to retract. 0. 7mm tip writes medium lines. Colors are FUN, colored erasers in a modern clear barrel. Remove lead easily and cleanly without scuffing, smearing or tearing. Pocket clip advances/retracts eraser. Pentel Hi-Polymer erasers remove lead easily with little pressure. No smudges, no tears, no ghosting. High quality, latex-free erasers do not harden with age.