It's called the
Quilter's Wonder Wheel and/or
Quilter's Seam Allowance Disk.
Different sites have it listed differently.
Because that's really helpful. :roll:
I bought mine at Joann's.
http://www.dritz.com/brands/showcase...p?ITEM_NUM=C94
The barcode is included so if you're calling the store before you go, they can check the store inventory.
http://www.google.com/search?q=+quil...ab=wf&bav=on.2,or.r_gc.r_pw.,cf.osb&fp=c135215a99c960d6&biw=1280&bih=670
This exact topic comes up every couple of weeks.
I think next time I see them in the store, I'm just going to buy a bunch to have on hand when people go looking for it. ;-)