Features :
1 :presser foot with built-in stitch alignment ruler for guiding rows of parallel stitching
2 : Ideal for parallel-line straight stitching , topstitching , and straight- line machine quilting , Easily stitch multiple rows of stitching without marking every line
How to use :
1 : attachment with a long shank. ( presser foot may require your specific sewing machine companies speciatly adaptor , Not compatible with all machines .)
2 : move the ruler to set distance between needle and alianment guide . 3/8 in .(9.5mm) to 3 in . (76.2mm).
3 : the foot has a 1/4 in .(6.4mm)seam allowance
4 : align guide to previous marked line or previous stitching line