The packaging literally reccomends these for Ethernet cables but in my experience that's a waste of time, it's very difficult to secure the cable to the hooks and if they have to support any weight or tension they will fail either by bending and breaking or by popping loose. I've used the larger clear cable clips for Ethernet cables before and they are infinitely better and worth the extra cost

They are so small and hard to notice which makes them great. They stick really well too.