Pre-wound bobbin thread with cardboad sides - polyester 75D/2,  "M" style fits most longarm and mid-arm quilting machines - Gammill, Handi Quilter, Innova, Nolting, Tin Lizzie etc.and any other multi-needle  embroidery machines with jumbo bobbins like Tajima, Melco, Ricoma, Tang etc.  White colour.  12 pcs per pack.

Each bobbin thread about 196.6m long.