Picasso refills fit for all kind of Picasso rollerball pens, in supermarket packaging. Nib size is 0.5mm and 0.7mm. you can choose what you wanted
Please remove the pen barrel first, then unscrew the old refill from the pen body, lastly please screw the new refill in it
Quantity: 4pcs in supermarket packaging same to the photos
If any problems caused(like did not receive or pen did not work), please don't hesitate to contact us, we will try our best to help you solve the problems