Fixed Double Folded Bias Binder Attachment: No Screws Included to fasten to machine bed. Its the same thread size as your foot to presser bar screw.
*Binder is adjustable left to right with screws on the sewing machine bed to line up the folded bias tape to the straight stitch or zigzag needle positions on the machine.
Tape feeder mouth is adjustable front to back, so it won't run into the feed dogs or presser foot while sewing.
It is best to stitch in place at end of sewing so that the binder is not pushed back by the material when trying to reverse stitch.