Art no. 307 120 m Royal Pre-wound Art no. 308 123 m in white or 113 m in black Magnetic Sided Bobbins
100% polyester 144 spools per box
ROYAL: No winding from large cones! Prewound bobbins are practical, always ready to use and have the same amount of thread on each bobbin, which means all bobbins can be changed at the same time without wastage.
Magnetic Sided Bobbins: For a constant thread tension and quick replacement. The magnetic side adheres to the bobbin case, ensuring placement in the right position and smooth movement during embroidery.
Available in colour black and white
Guidelines for Underthread use: For standard length stitches the general rule for underthread requirement is around 3 m per 1000 stitches. Upper thread: You can expect approximately 5 m per 1000 stitches. Correct thread tension: A perfectly tensioned embroidery with standard length stitches should have around one third of the underthread visible on the stitches underneath!