La Pierre Studio Mega Genie Magic Bobbin Washers for all Long Arm Machines M Bobbin Cases
These Mega Genie Magic Bobbin Washers are specially designed to fit your long arm bobbins. The 7/8" diameter "M" style washers are larger than conventional sewing machine bobbins, so they effectively eliminate backlash and bird's nests on the underside of quilts. Sold in 12/pk.
