Durable waterproof permanent marker pen with a 4mm round tip, perfect for bold writing, labeling, and marking on paper. Available in black, blue, and red ink.
Main Characteristics:

Writing point: 4mm
Ink type: Permanent oil-based
Tip shape: Round tip
Colors: Black, blue, red
Dual-sided writing: No
Suitable for: Paper, labeling, and general marking
Long-lasting and waterproof ink