BEIFA Beifa Direct Ink Quick-Dry Rollerball Pen Signature Pen High-Capacity Writing Carbon Pen Smooth for Teachers and Students Red 15-Pack 【Back to School Essential】

Stable ink formula with balanced ratio for smooth flow

Water-resistant, does not smudge or bleed on paper when wet

Quick-dry, prevents ink smearing and dirty hands

Leakproof design with PPSU material and blowout preventer

Visible ink level for easy monitoring

Direct liquid ink delivery system for stable ink output and anti-leak performance

Multi-layer fin structure to regulate internal pressure and ensure smooth ink flow

Comfortable grip made of high-quality material for smooth writing experience

Cap with clip design for easy carrying and pen tip protection

Durable and drop-resistant construction

Replaceable refill

Designed to avoid ink stains on hands and paper

Professional quality certified and rigorously tested