This foot is ideal to sew along a transparent ruler. Note: When using this presser foot make sure the 2mm reduction is active in the "sewing settings - hovering height".

You can also adjust the presser foot height by reducing the presser foot pressure below 0. Lower the feed dog and use without dual feed.
 

Firmware Update
 

To use this product, make sure the most recent Firmware is installed on your machine. Visit the support section of your model to download the latest Firmware and step-by-step installation instructions.