Bobbinette Thread 150 1000m. For very fine and delicate fabrics and pucker free seams, as well as for high quality overlocking. BOBBINETTE is especially good as bobbin thread in combination with Mettler POLY SHEEN Fibre: 100% Polyester Length:1000m / 1094yd Weight: 91W/2Ply Recommended Needle size: 60-70