Poly Core Spun:
Engineered with advanced polyester technology, these bobbins are wound from Premo-Soft 50wt. which has a strong polyester core, preventing thread breakage and ensuring smooth, even stitches. This thread has a soft, matte finish, like a cotton thread that blends into your projects.

Uniform Tension Control:
Patented magnetic-core design guarantees consistency throughout the entire bobbin. This unique design limits backlash and over spins in the bobbin. No more interruptions while sewing!

Only the Best Quality:
Fil-Tec uses only the finest quality, high tenacity polyester yards to make their patented magnetic-core bobbins. Made right here in the USA

Saving Time with Fewer Bobbin Changes:
Magna-Quilt pre-wound bobbins offer significantly more stitches per bobbin than a traditional self-wound bobbin. Save time winding your own bobbins and apply that time to sewing your projects. These bobbins work perfectly in all Juki TL Mechanical Sewing Machines or any machine that uses L size bobbins. Scroll down to see a video tutorial on pre-wound bobbins.

Versatile and Reliable:
Whether you’re quilting, doing embroidery, or crafting, Premo-Soft 50wt. Thread is ideal for any project. Quilters love using this in their bobbin for quilting. This thread gives apparel sewists the strength and softness they need to assemble garments.

Magna-Soft 50wt. Gives longevity and delicacy to each stitch ❤️