Part # : 45751+45785 5PCS
The alternative part number IS : BC-HR221+45785 5PCS
THIS LISTING INCLUDES :
1 PCS Part #45751/BC-HR221 bobbin case
5 PCS Part #45785 bobbins
Brand new high quality 1 pcs Bobbin Case and 5 pcs Bobbins
FIT Singer FeatherWeight Sewing Machines models:
221 Featherweight, 221-1, 221k, 222, 222k, 301, 301A
Attention: in case your singer 221 machine came off an late 40's or early 1950's , the bobbin case fitting your machine should be 45750, NOT 45751 from this listing.