The FriXion Ball 4 Erasable Ballpoint Pen features four retractable ink colors and thermo-sensitive erasable gel ink, combining multi-functional use with sleek, minimalist style. 

Key Features:

• Four ink colors in a single pen (black, blue, red, green) selected via a click mechanism for efficient multitasking. 

• Thermo-sensitive erasable gel ink that disappears cleanly with friction, enabling error-free writing and re-writing. 

• Soft, comfortable grip—designed for extended writing sessions without hand strain. 

Specifications:

Tip Size	0.38 mm (ultra-fine point)
Ink Type	Thermo-sensitive erasable gel ink
Colors Included	Black, Blue, Red, Green
Compatible refills	Ink: Frixion Ball 4 Green Erasable Ink Refill  Eraser: Frixion Ball 3 & 4 Replacement Eraser / Pilot