Husqvarna Viking Generic Edge Stitch Foot Pfaff Bobbins & Other Accessories while the red markings help

while the red markings help you know where to pivot when turning corners

both are great to have as some situations and projects are easier with one or the other and you just don't know until you are sewing which might be better

Use a corresponding twin needle (sold below) with the Brother/Baby Lock Pintuck Feet:

The Bernette Open Toe Walking Foot also features an open toe sole for better visibility

Fortunately

Husqvarna Viking Generic Edge Stitch Foot Pfaff Bobbins & Other Accessories while the red markings helpFor Perfect Edgestitching & Stitching In the Ditch The Husqvarna Viking Generic edge stitch foot is used for stitching in the ditch, edge stitching, as well as joining two edges together. The center guide on the Husqvarna Viking Generic edge stitch foot assures that your stitching stays perfectly straight. Includes instructions. Be sure to watch our instructional video above to find out all of the many ways you can use the Edge Stitch Foot to make