DOUBLELIN Prewound Bobbin, Cardboard, Size L (SA155, Size 9.4), White Color, 144pcs per Box, 75D/2 Polyester, Compatible with Babylock, Barudan, Bernina, Brother, Consew, Singer, Tajima and More

I bought these for my commercial embroidery machine. So far the are working out just fine. They are 60 wt. polyester, which is exactly what I wanted. I am not getting any thread breaks caused by them. I would buy them again.

These are easy. I don’t have to do anything other than just swap the used one to a new one. Such a time saver.

These fit so well in my Ricoma Em-1010. They are better than the other brands I’ve tried. I just feel like they run out quickly. I feel like for the cost they’re worth it.

I have a four head machine, these are great!! Good price as well.

I use these in our high speed commercial embroidery machine. They work great No problems at all.

I will never wind my embroidery bobbins again!

I used to use magnetic bobbins but these work just as well and half the cost

Like other reviews say, these are not worth it. I run a 16 needle Melco Bravo and they do NOT sit in the case correctly. They can only be used a quarter of the way and then have to be switched because the needle will not pick up the bobbin thread. I did a rotary hook maintenance, it did NOT help. I changed over to a Coats bobbin and it worked like a charm. I know it is not my machine with the issue. The bobbins do not fill up the whole bobbin case either. Don't waste your time or money because these are trash! ALSO, if you use a newer model brother, don't even attempt to buy them. Right when I opened the package a piece of paper says, "1. Strong suggestion for Brother new model machine users only. For some reason, Brother installs the bobbin case without tension. . . " There this is a whole piece of paper to tell you how to make them work with your machine and what to do when it wont hook, the bobbin keeps breaking, the tension is not stable. If it is telling you what to do, it is because there are many issues. I think they needed a paper like this for a Melco machine. I am just throwing these away and wont recommend to ANYONE! So upset!