How to sew Belt Loops

The white strip is just a PP strap. This is in order not to slide while sewing (sewing gap). When the thickness of the fabric is different, the pressure of the presser foot and the feed dog are not stable. Putting this tape means adding the height, this is very The pink tape is made of urethane foam with a sticky surface. It is very useful as a guideline for stitching. We buy them in a kind of professional shop in Japan. The information of this shop is secret. It is used for stitch guide