This adapter allows you to use any of the Bonny Doon bracelet forming dies as stakes for forming using a hammer. The vise is specially made to work with the Bonny Doon vertical vise. Simply remove the screw from the base of the bracelet forming die and separate the two. Insert the die into one of the two mounting holes in the adapter. Then secure the adapter in the vise, and your're ready to form your metal. Made of 1" square stainless steel stock.