Originally Posted by AudreyB
I use them in my Pfaff 7570 all the time. No problems. I was told that in this machine I should take the cardboard ends off, so that is what I do. Works great.
Taking one or both ends works on my Pfaff too. Buy them in cream and light grey and they last so much longer than when I wind bobbins myself. Have been able to use them with Clark and Mettler top threads without any problem. May in Jersey