The "lazy Susanne" helps you to crochet into very fine eyelets, braids etc. whenever there is a risk that you could break threads with the hook of the crochet hook.It works on the principle of threading aid.
How do you work with it?
First pull an auxiliary thread through Susanns eye.
Use the ended needle to put the auxiliary thread through the questioned eye and form a loop of the thread (do not pull it completely through the eye!)
Put the bobbin you want to sew through this loop.
Now you withdraw Susan with the auxiliary thread. The thread which has to be sewn follows.