Rollerball pen with hybrid needle tip features an ergonomic rubberized grip for an ultra-smooth writing experience. Super-Flow-System for consistent ink flow and large ink reservoir with level indicator. Waterproof, documental ink. Cap-off ink does not run dry even if the cap is removed for 2-3 days. High-quality metal clip. Pen Sub-Brand & SKU Line: One Hybrid Pen Style: Stick Pen Type: Roller Ball Pen Refillable Yes/No: No.