Review on 🧵 Simthread 144pcs Pre-Wound Bobbins, Class 15 Type A SA156, Polyester White 60 wt - Ideal for Bernina, Pfaff, Ambition, BabyLock, Brother Embroidery and Sewing Machines by Carla Anderson

In general, this thread works well now. At first my machine didn't seem to like it that much and the bobbins bounced around as I sewed. The bobbins need to be the right size for my machine. I started using Teflon "coil washers" and it made a world of difference! I use them in my Juki sewing machine for quilting and general sewing, not machine embroidery. With the addition of spool washers they now work fine. I like that they are ready to switch when the spool runs out. I don't have to stop and start a new one, just take it out of the box and plug it in! They also seem to hold more thread than the bobbins I wind on my machine.