PILOT Frixion Synergy Knock Refill

The Frixion Synergy Knock gel pen pairs the beloved thermosensitive ink of Frixion pens with a sleek, retractable pen body.

• The Synergy Knock also features Pilot's unique Synergy tip, which combines the precision of a needle point with the durability of a conical point.
• The transluent clip matches the ink color, and the pen's tip size is indicated by the eraser color.
• Frixion pen use a special thermosensitive ink that turns invisible when rubbed with the built-in friction 'eraser'.
• The ink will disappears if exposed to other sources of heat or friction.

5 colors available.

Tip sizes: 0.3mm, 0.4mm & 0.5mm

Click this link for pen: https://www.bunkuya.com/products/pilot-frixion-synergy-knock-0-3-0-4-0-5mm