Sewing machine bobbins for horizontal hook - 20.5 mm 4 pcs.

The horizontal hook is a system that does not require a bobbin case and has low thread tension. For machines with this type of bobbin, Prym offers packs of four identical sewing machine bobbins made of transparent plastic in three different sizes.A major advantage of the plastic bobbin is that you can always see the color of the thread and the amount of thread on the bobbin, thus preventing the sudden loss of the lower thread. Prym offers these sewing machine bobbins for the brands JANOME, BROTHER, SINGER, BERNINA, HUSQVARNA, and PFAFF in the appropriate designs.