Madeira Magnetic Bobbin L Black Sewing Essential Key Features: • Magnetic-Sided Design: Magnetic Side Ensures Consistent Tension and Prevents Backlash for Smooth, Reliable Stitching. • Lint-Free Performance: Continuous Polyester Filament Thread Minimizes Lint Buildup in the Bobbin Case, Improving Machine Efficiency. • Durable and Reliable: Designed for Long-Lasting Use, Maintaining Optimal Performance Throughout the Bobbin’s Lifespan. • Paper and Magnetic Combination: Features a Magnetic Side and a Paper Side for Smoother Operation and Reduced Wear on the Machine. • Professional Quality: Ideal for L-Style Embroidery Machines, Providing Dependable, Minimal-Maintenance Results for High-Quality Embroidery. Keywords: Madeira, Embroidery Bobbins, Magnetic-Sided, Polyester, Pre-Wound, Professional Quality, Lint-Free, High-Performance, Durable, Consistent Tension