Sulky spun polyester bobbin thread is a light-weight thread used in the bobbin for quilting. This thread also works great for piecing small quilts and
Sulky Invisible Polyester Thread - Clear - 2,200 yd. Spool
Fiskars Straight Rotary Blade 45 mm
Thread EE Schenck Company
Sulky Bobbin Thread - Black - 475 yd. Spool
Sulky 60 Wt. PolyLite Thread - Charcoal Gray - 440 yd. Spool
Polyester Thread - WAWAK Sewing Supplies
Sewing Thread - Cleaner's Supply
Interweave Stitch - Fall 2012, PDF, Sewing
Gutermann Sulky, Ideal under bobbin thread for all machine embroideries * Very fine, supple and tear-resistant * Results in a first-class embroidery
Sulky Bobbin Thread
Embroidery Bobbin Thread
Light-Weight Thread - WAWAK Sewing Supplies
Sulky Spun Polyester Bobbin Thread - Tex 10 - WAWAK Sewing Supplies