

The hook is the heart of every sewing machine, as it is responsible for knotting the threads and thus creating the seam. The CB hook for the central bobbin, tried and tested for decades, is the most widely used system and 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 supplied as metal spools in sets of five. The transparent metal CB spools help you keep track of the thread color and supply at all times.
The looper is the heart of every sewing machine, because it is responsible for knotting the threads and thus for the seam. The CB gripper for the central coil, which has been tried and tested for decades, is the most widespread system and is ideally suited for domestic use. Prym offers these CB coils made of metal or transparent plastic. Both variants have a diameter of 20.5 mm, a height of 11.7 mm and can be supplied as plastic spools of 4 pieces each and as metal spools of 5 pieces each. The clear plastic CB spools help you keep track of yarn color and stock levels.
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