Review on Bundle of 2 Extra-Large Bobbin Threads (1 Black, 1 White) - 5500 Yards Each - Polyester - Perfect for Sewing and Embroidery Machines - Embroidex by Wendy Rodriguez

At first I hated this bobbin thread because it unravels and tangles so easily, but I've learned to control the unraveling of the thread with a thread net. Also, I had a lot of tension issues and thought the bobbin thread was the culprit, but it was actually the machine. Once I switch to another machine and it has auto tension it seems to work much better and I haven't had any issues since. Really good value for money because you get so much yarn on a huge spool like this.