Clear plastic sides prewound bobbin threads keep the bobbins from warping or absorbing machine oil. The smooth, even winding helps reduce thread breakage and tension issues for more consistent stitching.
Size A / Class 15 (SA156) prewound bobbin threads are compatible with Brother, Babylock, Janome, Juki, Elna, Singer, Kenmore, Quantum Futura Embroidery and Sewing Machines.
High tenacity Polyester Filament 70D/2 (60WT) prewound bobbin threads help maintain consistent draw-off tension from beginning to end by effectively reducing friction and static charge during embroidery and sewing, so your stitches stay smooth and even.
WHITE Color prewound bobbin threads are ideal for everyday DIY embroidery and sewing projects, meeting your basic needs and matching easily with most fabric and top thread colors.
Stable Tension: Carefully prewound bobbins help maintain stable bottom tension and clean stitch formation.