Super Bobs Poly Bobbins - Class 15/A

Super Bobs Poly Bobbins in Class 15/A (SA156) size are a longarm and domestic machine staple at Linda’s Electric Quilters. Pre-wound with high-quality polyester thread, these bobbins save setup time and deliver consistent, even tension from start to finish.

What is the Class 15/A bobbin size?

Class 15 (also called Style A or SA156) is one of the most common bobbin sizes used in domestic sewing and quilting machines, including many popular brands. Check your machine manual to confirm compatibility before ordering.

Why use pre-wound bobbins instead of winding my own?

Pre-wound bobbins hold significantly more thread than hand-wound bobbins and are wound at consistent tension, which reduces skipped stitches and thread breaks during long quilting sessions.

What thread weight are Super Bobs Poly Bobbins wound with?

Super Bobs are wound with a fine 60-weight polyester thread that works beautifully as a bobbin thread beneath cotton, poly, or specialty top threads.

How many bobbins come in a package?

Super Bobs are sold in packs — see individual product listings for exact quantities. Buying in bulk is a great way to keep your machine running without interruption.