6 x norvise thread clips. For sale are thread traps to suit the Norvice autobobbin. If you use this type of thread bobbin you’ll know that the thread is always trying to retract inside. This small thread trap sticks to the side of the bobbin, and allows you to nip the thread in there to stop it pulling back in. To attach the clip, simply apply a couple of drops of superglue to the inside corners of the clip, and stick on. Will grip even the fines multifilament threads. Note: this is not a norvise product, I make these as an enhancement to the autobobbin Autobobbin shown not included. Thanks for looking, please see my other items for various fly tying tools and materials.