I have made tons of these bowls as well as trivets and sold them. I purchased from Amazon Prime. Koch 7/32 x 200 feet for $10.97. Very economical and I got lots of bowls with 200 ft. I purchased at least 15 pkgs in 2013. I had no difficulty using my Janome Jem and I use Organ brand needles. Never had a broken one or difficulty of any kind. Hope this helps. Good luck.