Special size for Long-arm machines and medium bobbin cases. Teflon washers eliminate backlash and bird's nests on the underside of free-motion quilting, thread painting or embroidery when changing directions at high speed. Super slippery Teflon is tough and durable. Package contains 12 Mega size washers (15/16").
The Magic Bobbin Genie eliminates backlash and bird's nests on the underside of free-motion quilting, thread painting or embroidery when changing directions at high speed. For home sewing machines with top drop-in bobbin SIZE L