The outside foot has one toe on the RIGHT side and teeth on the bottom.
The inside foot also has teeth on the bottom.
This set of Walking Feet is designed for all kinds of General & Heavy work on Leather, Upholstery, Tarps, Tents, Canvas, etc.
The Outside Foot Single Toe configuration allows the operator to sew very close to Welting, Zippers, Buckles, Straps, D-rings, Snaps, etc.