I have about 15 feet with my Janome - haven't used all of them yet, but am sure that I will in the future. Also have 6 additional feet with my Baby Lock serger - again, know I will use them once I learn how. And I do have a ruffler - cost about 12 dollars and stays mostly attached to my gear driven Singer. I LOVE the ruffler, and make really good use of it making clothes for my little grand girl. I downloaded a PDF tutorial for rufflers (not any certain brand) and it was a Godsend for me. I don't have the actual link anymore, but know that I downloaded it for free from the "YOU CAN MAKE THIS.COM" site. It was VERY well written and very, very thorough.