Blister pack of 5 flat plastic sewing machine spools 15 K. Height 11.80 mm - ø 20.30 mm. Today's sewing machines operate on a lockstitch pattern. So you need a top wire and a bottom wire. The upper thread is therefore supplied by the spool of thread that you place on your spool holder. The bobbin therefore provides the lower thread. The sewing machine bobbin therefore plays just as important a role as the upper thread.
You want some more ? Have a look at our next product, Blister of 5 flat bobbins, for sewing machines, in steel 10 holes 15 K, to continue your shopping! Not convinced ? You will have a better chance by seeing our Machine bobbins collection! Still not enough? We advise you to take a look at the main category of our catalog "To sew by machine" to have more choice !