These bobbins are pre-wound with a magnetic core to stop overspinning during embroidery – especially at high speeds. These will fit embroidery machines like the Brother PR range (Brother PR600, PR650E, PR680W, PR1055X & Even the VR) Features: 100% continuous filament polyester Patented magnetic core creates consistent tension throughout every bobbin while significantly increasing productivity and stitches per bobbin Runs clean through the bobbin case with virtually no lint build up Uniform tension and more stitches per bobbin, with reduced garment scrap equals higher profits The product of choice for embroidery techs worldwide Eliminates backlash and over spin worries 100 per box Each bobbin 123 metres
