Precision is our 60 wt. lint-free polyester thread that quilters and sewists love to use for EPP, appliqué, machine quilting, and more. Our Class 15 prewound bobbins are precision-wound, holding up to 70% more thread than self-wound bobbins, giving you more time to quilt, sew, and embroider with each bobbin. As a fine (thin) bobbin thread, it blends incredibly well with 40 wt., 50 wt., or 60 wt. top threads. Quilters love how smooth it stitches. Each bobbin contains 120 yards of thread. 12 bobbins per pack.