CKPSMS Brand - Bobbin CASE BC-DBM Series No-Back-Lash Spring Compatible with JUKI Singer CONSEW 20PCS

PART#: BC-DBM-SPRING THIS LISTING IS BRAND NEW HIGH QUALITY BOBBIN CASE #BC-DBM Series (No Back Lash) SPRING . Suitable for 1" Diameter "M" Style Bobbin Cases using Large Capacity Hook. Please pay attention to the size of the product ! Fit for JUKI SINGER CONSEW BROTHER AND most walking foot type sewing machines. No-Back-Lash brake spring which puts constant , light pressure on bobbins to overcomemomentum. Bobbins stop spinning faster, preventing unraveling or tangling of bobbin thread when sewing operations stop and start.