16 BOBBIN KNOBBINS to organize your sewing machine bobbins.Each durable, stackable case includes a label to identify contents and owner of the case. Our unique foam shaped BOBBIN KNOBBIN secures those loose threads. Our BOBBIN KNOBBINS fit most domestic and industrial sewing machine bobbins. Case with hinged lid is 3 1/4" square and 1 5/8" high with lid closed. Bobbins not included.
Take a Sharpie pen and write your info on the case. If you make a mistake,take rubbing alcohol and wipe off and start again.