The bobbin hook is at the heart of each sewing machine, because it is responsible for the knotting of the threads & therefore for the seam. Proven over many decades, the CB hook for the central bobbin is the most widely used system and is ideally suited for home use.

These Prym CB-Bobbins are a transparent plastic which allow for the user to keep a great overview of thread colour and quantity remaining. The size of these bobbins have a diameter of 20.5mm and a height of 11.7m with the pack containing 4 bobbins.

Please keep out of reach of children, these bobbins may present a choking hazard.

Due to a differences in screens/monitors and other factors the colours seen may vary to that of the actual product. For more information please read our FAQs section.