Fil-tec Magna Glide Bobbin
Fil-Tec Magna-Glide magnetic Bobbins are known as the "high-yield bobbin without tension variation." High-tenacity, polyester filament thread is wound onto a magnetic core to give you consistent thread delivery throughout the entire bobbin. ABC Sewing Machine stocks Fil-Tec Bobbins in style "L" (135 yds.) pre-wound with black or white thread, pre-wound with white thread. Sold in boxes of 100.