This wedge is specifically for 3/4" or 1" oval panel or X Looms and 5/8", 3/4" or 1" S looms. Wedges come with the looms when ordered. If you need an extra wedge you can purchase here.
I love the look of this flower for the bookmark. I don't understand what it means when you say twist the yarn and put it on the peg then knit it off. Is that like ewrapping the peg?