Zhenlei pre-wound bobbins are sideless and with plastic core, resulting in smoother running, fewer jams. Zhenlei pre-wound bobbins have sizes in 602 and 75D, which fits for most embroidery machine. Each 602 pre-wound bobbin contains approximately 90 meters of continuous filament cotton thread with diameter of 20mm, and each 75D pre-wound bobbin contains 130 meters of continuous filament terylene silk thread with diameter of 20mm and 24mm. Black and white are available now. And we can also make the pre-bobbins according to the colors and sizes you supply.
Zhenlei prewound bobbins are wound by high tech machines which provide a smooth, uniform wind. The result is much more thread on the bobbin than a self-wound bobbin. Whether you're in the middle of an embroidery design or a quilting or sewing project, having to stop to change the bobbin is always an inconvenience.

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