How to Use Pre-Wound Bobbins

Learn about pre-wound bobbins and why they might just become your new favorite sewing supply. If you’ve ever run out of bobbin thread in the middle of quilting, or spent extra time winding several bobbins before a big project, pre-wound bobbins can save you time and frustration.

They come ready to use straight from the package—already wound, even, and consistent. You can find them in different colors, thread thicknesses, and bobbin sizes to fit most sewing machines. Just be sure to double-check your machine’s bobbin type before buying so you get the correct fit.

In this post (and video), I’ll show you the types I’ve been using, what I like about them, and a few things to keep in mind before you switch.

I cannot say enough wonderful things about Pre-Wound Bobbins. They really are easy to use and are the BEST thing for every machine that you own.

Even the long arm and embroidery machines!

What Are Pre-Wound Bobbins?

Pre-wound bobbins are exactly what they sound like—bobbins that come already filled with thread. Instead of spending time winding each one, you simply drop it in your machine and start sewing. They’re tightly wound by machine, which means they often hold more thread than you can wind on your own.

They’re available in both plastic and cardboard-sided styles, and you can choose from a wide range of colors and thread weights depending on your project.

Why You’ll Love Using Pre-Wound Bobbins

• Time-saving – skip the winding and get straight to sewing.
• Consistent tension – machine-wound bobbins are evenly packed for smoother stitching.
• More thread per bobbin – less stopping to refill while quilting.
• Color options – match or blend with your project fabrics.
• Great for quilting – perfect for long sewing sessions when you don’t want to stop mid-seam.

Types of Pre-Wound Bobbins

You’ll find pre-wound bobbins in a few different sizes and materials, so make sure to check what fits your sewing machine before you buy.

• Size L – the most common for domestic machines.
• Size M – typically used in midarm and longarm machines.
• Class 15 – another common size for home sewing machines.

They also come in:

• Plastic-sided bobbins – reusable and easy to see how much thread is left.
• Cardboard-sided bobbins – great for machines that prefer a softer fit in the bobbin case.

Color and Thread Options

Pre-wound bobbins are available in basic white, black, or neutral gray, but many brands now offer multi-color packs—perfect if you want to match top and bottom threads for smaller projects.

Thread weight can vary, too:

• Lightweight threads (60 wt or finer) are ideal for piecing and quilting.
• Heavier threads (40–50 wt) work well for decorative stitching or visible seams.

Tips for Using Pre-Wound Bobbins

• Check compatibility first. Look in your sewing machine manual for the correct bobbin size and type.
• Test one before committing. Different machines react differently to tension and thread types.
• Adjust your bobbin tension slightly if needed, especially when switching between pre-wound and self-wound bobbins.
• Store extras in a small case to keep them dust-free and organized.
• Reuse the empty bobbins if they’re plastic—simply wind them again for another project.

Pre-Wound Bobbins I recommend and use

• DOUBLELIN Prewound Bobbin, Plastic Sided, Size L(SA155, Size 9.4) black – https://amzn.to/4pZoEAZ
• DOUBLELIN Prewound Bobbin, Cardboard, Size L (SA155, Size 9.4), White Color – https://amzn.to/42wB7SL
• Doublelin, Prewound bobbins, Plastic Sided, Size A, Class 15, 15J, SA156, 144pcs, White – https://amzn.to/4h8gPVR
• Outus 50 Pieces Prewound Thread Bobbins with Bobbins Box for Brother Sewing Machine, 50 Assorted Colors – https://amzn.to/47pVjrd
• 50 Pcs Bobbins, Plastic Bobbins for Sewing Machine, Sewing Bobbins with Bobbin Case – https://amzn.to/4nj5HqF
• 4-Pack Rubber Bobbin Holders – Round Sewing Thread Organizer for Metal & Plastic Machine Bobbins – https://amzn.to/3KRCp4F
• Dritz Bobbin boat – https://amzn.to/4n2D6Fz

Pre-wound bobbins are a small upgrade that can make a big difference in your sewing routine. They save time, give consistent stitching, and let you focus more on sewing rather than winding.

If you’ve never tried them before, pick up a small pack in the right size for your machine and give them a test run. Once you see how convenient they are—especially for quilting—you might find yourself keeping a stash on hand all the time.

More Bobbin Resources

Matching your bobbin thread for your binding.

Make your own bobbin tamer with hair ties.

10 tricks for keeping your bobbins nice in storage.

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