Mitsubishi Uni Propus Window Highlighters

Highlight with precision—see exactly what you’re marking.
The Uni Propus Window Highlighter features a clever transparent window in the tip, letting you see the text as you highlight it. No more overshooting or awkward line ends—just smooth, controlled color with every swipe.

A Japanese cult favorite, this highlighter balances function and fun with its soft colors and dual-tip versatility.

Tip size: Chisel tip (4.0mm), Fine tip (0.6mm)
Ink type: Water-based
Unique window cut-out in the tip
Available in multiple colors
Made in Japan

Innovative see-through tip = precise highlighting Dual tips: a wide chisel + a fine point for underlining Smooth, even ink flow with no bleeding Available in soft, study-friendly colors Designed for planners, notes, and margin lovers