Well I'm sorry Dogcatcher, but your expert seems to be mistaken. If you do a google search on them, you will see that they are used for crocheting also. Plus, now that I see and know what they are, I know of many instances where I could use one.It is for embroidery not crochet. My expert on crochet and embroidery, my wife said that most people use a "bodkin" needle for a laying tool. As to a kit, I have no clue.