A stylish looking water-based felt-tip pen. Round square shape that has no corners and is hard to roll on a desk and easy to grip. Unlike conventional felt-tip pens, the pen tip is not crushed by covering the pen core with the outer, making it a durable and stress-free pen core that does not break easily. The outer tip protects the pen tip, allowing it to be used at various writing angles. Uses a water-based pigment ink that does not bleed through even if it gets wet with water when dried, and does not show through. A set of 5 candy pop colors.