I received this because some layout diagrams tend to grow a little more than expected during development and typical jumper wires tend to turn into a rat's nest, so when I click on the tactile element I have to click that I placed on the breadboard, I have to move the jumpers to the side. They're good for this, but I quickly realized I needed more than the box, because while it has 140 jumpers, it's too many long. The truth is that a rat's nest doesn't materialize because of the long connecting wires, but those are the ones you plug tightly together and you end up with too much extra wire forming a loop floating above the breadboard. Other than that, they work well, they end up making safer connections because you don't have to constantly move them out of the way, and better yet, you can use them to make some clean jumpers on a PCB prototype if your projects do go to the next level. I love them and will continue to buy them.
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