144 prewound Size L (SA155 / Size 9.4) cardboard-sided bobbins, wound with 75D/2 filament polyester thread in Black. High-yardage industrial bobbin thread for embroidery on sheer, near-translucent dark fabrics.
Most embroidery looks perfect with white bobbin thread — even on dark fabrics. Embroidery stitches completely cover the bobbin thread. Only buy black if your fabric is sheer/near-translucent AND your design won't fully cover the back.
Quick Decision Guide:
Most embroidery on any color → White 75D/2 (LCW-75D2)
Dark sheer fabric with open/small design → Black 75D/2 (this listing)
Need more strength? → 60S/2 or 40S/2
Sewing & Quilting → 40S/2
75D/2 is a fine filament polyester thread. Your machine must have adjustable bobbin tension. Cardboard-sided bobbins are biodegradable and ideal for commercial embroidery machines.
Fits SA155 / Style L bobbin machines with adjustable bobbin tension. Compatible with Brother, Babylock, Janome, Singer.
DOUBLELIN has manufactured embroidery machines, DTG/DTF printers, and machine parts since 1989. Our bobbins are produced in-house.