5 rounded bobbins for sewing machine - Plastic

Today's sewing machines operate on a lockstitch pattern. You therefore need an upper thread and a lower thread. The upper thread is therefore provided by the spool of thread that you place on your spool holder. The bobbin therefore provides the lower thread. Formerly called a bobbin, the sewing machine bobbin therefore plays as important a role as the upper thread.

Standard dimensions: height 11.80 mm - ø 20.30 mm.