Tombows MONO Knock Eraser has a pen-style body that is easy to use and store. It features a convenient clip for on-the-go corrections and a rubber grip for comfortable use. A precision eraser that is retractable and refillable perfect for drawers of all skill levels.
Specifications:

• 3.8 mm diameter
• Phthalate and latex-free
• Non-PVC

This pack contains 4 refills for the MONO Knock Eraser.