This pen kit comes with an actual printed computer circuit board wrapped around the tube and embedded in clear acrylic resin. See the photos below for close ups of the circuit board and the raw tube.
This pen is amazing. The capacitors and other electrical components are real and the clear acrylic gives the pen an great 3-D depth.
The joint where the circuit board overlaps itself is very minor and you can see it in the photo (enlarge the photo to get a non-blurry image). The clip almost completely covers the joint.
A great pen for any techie out there.
Click here to open the instructions for this kit in a new window. All
instructions can be found on the FAQ page. The FAQ page can be accessed by
clicking on the FAQ/Instructions link in the Information box on the bottom of
the right hand column of every page.