100% POLYESTER FILAMENT 75D/2 BOBBIN THREAD 130YDS/BOBBIN STYLE A 144/BOX
Class 15 bobbins are a common size for home sewing machines
Dimensions: They have a diameter of around 13/16" and a width of 7/16"
Compatibility: They are used in many Brother sewing and embroidery machines, as well as other brands like Singer, Janome, and Elna
Material: They are typically made of plastic
Interchangeability: While some bobbin styles are interchangeable, always refer to your machine's manual to ensure compatibility