Description
The hook is the heart of every sewing machine, as it is responsible for knotting the threads and thus for the seam.The CB hook for the central bobbin, which has been tried and tested for decades, is the most widely used system and is ideal for home use. Prym offers these CB bobbins in metal or transparent plastic. Both versions have a diameter of 20.5 mm and a height of 11.7 mm and are available in packs of 4 plastic bobbins and 5 metal bobbins. The transparent plastic CB bobbins help you keep an eye on the color and supply of thread.