Dr. Slick Glass Bobbins feature ultra smooth glass inserts. These funnel shaped inserts are perfect for extra fine and synthetic threads. Dr. Slick Glass Bobbins also feature delrin feet for smooth, precise tension control on thread spools.
Dr. Slick Glass Bobbins feature ultra smooth glass inserts. These funnel shaped inserts are perfect for extra fine and synthetic threads. Dr. Slick Glass Bobbins also feature delrin feet for smooth, precise tension control on thread spools.