Keep Smiling EP-1002 Mono Eraser Pen Refills 5 Pcs Set has a 2.3mm Diameter. Safe quality and non-toxic material. Eco-Friendly.
Ideal for Art, Design, Highlight, Pencil, Crayon and General use.
REPLACEMENT METHOD OF RUBBER CORE:
Replace the refill as shown in the figure, press the cap, pull out the rubber refill that needs to be
replaced from the pen tip, and then install a new refill from the pen tip.