Replacement, high quality industrial sewing machine bobbins. These bobbins are made from quality hardened plastic and are manufactured to the highest standard.
Please note these bobbins are not cheap Chinese quality which are known to damage your machine, they are high quality which reduces the risk of breakage and bird nesting.
Technical Information:
Diameter - 21.2mm
Width - 9.2mm
Made in Japan by Towa for Jack.