Uni-Ball One Series Blue Gel Pen Set

- Qian Kong: Red pen barrel 0.5mm

- Xiao Tan: Black pen barrel 0.38mm

- Wu Gu: Gray pen barrel 0.38mm

- Hua Xia: Pink pen barrel 0.38mm

Ink Type: BLACKINK

Writing Experience: WRITINGDISPLAY

- Stable writing experience with low center of gravity design

Pen Clip: Simple metal pen clip for easy carrying

Refill Replacement: Compatible with UMR-05S/UMR-38S refills

Family: Small Thick Core Family

- Small Thick Core: 117mm

- Small Thick Core F Generation: 139.2mm

- Small Thick Core: 139.5mm

Pen Design: PENGRAIN

- Integrated design for a sleek and unified look

- Brand: uni

- Product Name: Small Thick Core F Generation Neutral Pen

- Model: UMN-SF-05/UMN-SF-38

- Origin: Japan

- Writing Color: Black

- Specifications: 0.5mm/0.38mm

- Size: 140*10mm

- Packaging: Single pen

- Refill Compatibility: UMR-05S/UMR-38S