Sideless with inner core. L bobbins so fit most embroidery machines that use plastic bobbins. 144 pre wound white embroidery thread bobbins. last twice as long as wound bobbins yourself. Such a saving when you do not have to stop and wind bobbins in the middle of a project.

Brand: ETC embroidery supplies
Type: Bobbin
Material: Polyester
Bobbin Size: Style L (D = 0.35 in./ H = 0.83 in.)
Colour: White