Pentel Rolling Writer Refills, R3 Slim Refill, Medium, Black, Box of 12 Refills

The MG8-A is a medium cushion ball tip refill for Pentel Slim Rolling Writer (R3 & R4). Black, water-based ink. Fiber feed & hard alloy tip set in a flexible delrin socket allows for smooth writing with no skipping or blotting. Extraordinarily flexible, the tip can produce lines of various widths.

• Refill Ink for Rolling Writer Roller Ball Pen
• Medium Line Cartridge
• Black Ink
• Box Includes 12 Refills