double pen BIC

The idea is quite simple, but it solves a problem I encountered as a student.I just turned 19, and during my studies, I often found myself without a spare pen or a pen in a different color handy when the first one ran out of ink.Thanks to this simple yet effective gadget, you save time when writing headings in a different color because the pen is already right there.Try it out for yourself.I recommend using two of them to hold the pens together more securely.(Use Bic pens.)It is recommended to print this file using TPU.