**Specifications:**
**Brand:** uni
**Model:** UMR-38S
**Product Name:** Gel Pen Refill
**Ink Color:** Black/Blue/Red (3 colors available)
**Length:** 112mm (slight manual measurement error)
**Tip Size:** 0.38mm
**Packaging:** 10 pieces per pack
**Compatible Pen Models:** UMN-S-38/UMN-S-05
**Features:**
- Smooth writing with bullet tip made of tungsten carbide
- Quick-drying ink that resists smudging and water
- Transparent and durable casing with logo imprint
- Suitable for various types of paper
- Available in black, blue, and red colors
**Origin:** Japan
**Additional Information:**
The UMR-38S gel pen refill by uni is designed for smooth and precise writing. It features a bullet tip with tungsten carbide for consistent ink flow without skipping. The quick-drying, water-resistant ink ensures clean and clear lines that do not bleed or fade. The transparent casing allows for easy monitoring of ink levels, and the pack of 10 refills provides long-lasting use. Compatible with UMN-S-38 and UMN-S-05 pens, this refill is ideal for both office and educational purposes.
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