Spun polyester bobbins engineered to deliver superior stitch quality across embroidery machines. The textured fiber surface mimics cotton behavior while eliminating lint buildup, providing consistent tension control that keeps bobbin thread hidden beneath top stitching. Ideal for preventing visible bobbin thread on finished embroidery. Bobbins are white, 60 weight, 97 yards per bobbin. A reliable choice for professionals seeking dependable performance without compromise.