art: 308501W
boja: bela
pakovanje: 123m x 144kom

art: 308500B
boja: crna
pakovanje: 113m x 144kom

For a constant thread tension and quick replacement. The magnetic side adheres to the bobbin case, ensuring placement in the right position and smooth movement during embroidery. Magnetic-sided bobbins allow increased stitch production, reduce thread breaks and prevent looping. Place the bobbin in the case with the magnetic side down.