Large 1100 m writing length (Approx. equal to 3 standard gel pens)
Ink Reservoir
Transparent visible ink chamber for real-time ink level monitoring
Writing Experience
Smooth writing with stable ink flow, not easy to clog or scratch paper
Ink Flow Technology
Multi-layer fin structure design with dense upper fins and sparse lower fins to regulate internal pen pressure and stabilize ink flow; air gap structure eliminates vacuum in upper pen tube ensuring smooth ink output even if dropped
Ball Material
High-precision tungsten carbide ball for smooth ink delivery
Clip
Premium metal clip, resistant to deformation and prevents rolling off surfaces
Color Options
Black, Blue, Red (suitable for study, office, report registration, and grading)
Additional Notes
Non-refillable cartridge; data based on deli laboratory tests; actual writing length may vary; product dimensions measured manually with slight possible deviations.