I have used the needle, the 2 threads need to be threaded different directions like the bottom hole is threaded the same way you thread your regular needle the 2nd needle should be threaded the opposite direction and when you get to your needle the last loop before should not be in the slot, that thread goes in the top hole, when you start to sew hold all 3 thread and give it a tug it should sew right. I hope this helps.