Gur gem embroidery thread set 22 pack length 550m quantity 22 spools this thread is rich in colour the embroidery thread works on all types of embroidery machines for embroidery yielding fine high quality works suitable for all types of fabrics knotless embroidery speed 1000 1200 rpm lasting approximately 10 years shelf life bleachable saves cost for stock because compatible as both rayon and polyester lncreased output as machine can run on higher speed beautiful works as more