Uni Jetstream X Karimoku 4&1 0.5 mmball

specification	details
Brand	uni (Mitsubishi Pencil Co.) × Karimoku
Product Line	Jetstream 4&1 Premium Collaboration Series
Product Type	Retractable Multi-Functional Hybrid Pen
Ballpoint Tip Size	0.5 mm (Fine Point)
Mechanical Pencil Size	0.5 mm
Ink Colors Included	Black, Red, Blue, Green
Ink Type	Low-viscosity hybrid oil-based ink (Jetstream Ink)
Grip Material	Genuine Natural Wood (Repurposed by Karimoku Furniture)
Selection Type	Slide knock mechanical selectors
Refill Compatibility	Uni SXR-80-05 series ballpoint refills
Origin	Japan
Key Feature	High-performance 5-in-1 layout equipped with a sustainable natural wood grip and ultra-smooth, fast-drying 0.5mm Jetstream ink