You must be logged in and verified to contact the designer.
Product Description
The 8mm Slimline Pro kit comes in both click pen and click pencil versions. Two tubes are required per kit.
https://www.pennstateind.com/store/PKPENXXCH.html
https://www.pennstateind.com/store/PKPCLXXCH.html
For additional information consult the penmaker's interest group in the Shapeways forum:
https://www.shapeways.com/forum/t/penmakers-and-3d-print-pen-making.80076/