"Opening the lid of your overlock machine is a bit scary.There are many specific numbers and places through which each thread has to pass. Places by which, if it does not pass correctly, your Serger/Overlock Machine will simply -refuse- to stitch. But, Did you know that it is not really necessary to even open the lid in order to change your Serger Threads? In this Post, I will tell you the secret shortcut to change the threads of your Serger Machine quickly and without errors. The best thing is without having to see the instructions! You will see that after learning this trick you will never re-thread your serger the same way again."