Amazon.com: Embroidex Set of 2 Huge Bobbin Thread for Sewing and Embroidery Machine 1 Black and 1 White 5500 Yards Each - Polyester : Arts, Crafts & Sewing
Amazon.com: Threadart 60 Weight Micro Embroidery Thread | Fine Line Lettering & Bobbin Thread | 1000m Spools - 30 Colors Available - Dana Blue
SuperBobs Polyester Bobbin 12pk M-Style Baby Blue – Keepsake Quilting
Bobbin Blue thread. Set of sewing thread coils on white natural fabric with embroidery. Several reels of thread in different shades of blue.Background Stock Photo - Alamy
Large Cone Embroidery Bobbin Thread - 5,500 yd White — AllStitch Embroidery Supplies