I bought these clamps to organize the wiring of track junctions on my model railway. You are very good at this task. As other reviewers point out, they are not durable. But for low voltage applications like mine they are ideal. I would like to state one caveat so that others do not repeat my experience. I used jumpers on each track. They were easy to cut and paste. However, my DCC controller indicated that there was a short in the system. I checked all the cables and they were all properly connected. I finally found the problem: A red and black sweater that had been cut were touching with their now exposed metal ends. So be careful not to touch these exposed metal ends.