80 weight, 2-ply Cottonized Polyester
Basic pack includes 12 Class 15 bobbins in four different basic colours - White, Black, Antique White & Dove Grey (3 of each colour included)
Usages: Bobbin thread, precision piecing, stippling, general sewing, machine embroidery, top and bottom thread for quilting, button holes, digitized lace design, hidden stitches.