KACO Coca-Cola Co-branded 0.5mm Retractable Gel Pen Student Exam Pen High-Value Signature Pen Quick-Dry Black Ink Carbon Pen Glacier Adventure 2 Black 1 Red

Product Specifications

Brand: KACO

Product Name: JUMBO Jumbo Retractable Large Capacity Gel Ink Pen "Writing Happiness" Series – Glacier Adventure [Coca-Cola Collaboration]

Pen Type: Retractable gel ink pen

Ink Type: Gel ink, quick-drying

Tip Size: 0.5 mm

Ink Colors: Black (0.5mm), Red (0.5mm)

Writing Length: Approximately 1800 meters (±10%), about 4.5 times the length of a standard gel pen, equivalent to writing 45 essays of 800 words each or running 4.5 laps around a school track

Tested according to national standard GB/T37853-2019 (minimum 400 meters for 0.5mm gel pen)

Ink Features:

Smooth dual-ball ST tip technology developed in-house by KACO

Dual-ball design ensures smooth, uninterrupted ink flow

ST fine tip with enhanced elasticity for precise writing

Quick-drying ink keeps paper clean and smudge-free

Ink color is rich black with high contrast, suitable for scanning and important exams

Red ink is water-resistant and lightfast, ideal for marking and corrections

Writing Angle: Supports smooth writing at a low angle of approximately 48°, compared to typical single-ball tips requiring about 60°

Pen Body:

Made of transparent polycarbonate material in black, red, and gray variants

Soft silicone spray-coated grip for comfortable long-term use and easy cleaning

Large pen clip design for easy carrying and storage

Precision injection molded integrated oil tube refill to minimize ink leakage risk

Dimensions:

Length: 146 mm

Diameter: 12 mm (barrel), 16 mm (clip area)

Packaging: 3 pens per box

Standards Compliance: GB/T37853-2019

Additional Features:

Retractable push-button mechanism for quick and convenient use

Suitable for note-taking, exam writing, marking, and daily use

Tested quick-dry performance under standardized conditions (writing at 65°-70° angle, 70mm/s speed, 3 seconds drying time)

Note: Writing length data tested by Shanghai Wencai Laboratory. Quick-dry test paper complies with GB/T12654 standard.