The #16 Gathering Presser Foot has a slot on the foot that allows a flat piece of fabric to be automatically sewn onto the piece being gathered in one swift operation.
If you are uncertain if your BERNINA requires the OLD STYLE FEET, examine one of your existing presser feet, the back top portion as viewed in the circle in the
image to the right.
![old style feet](https://cdn.shopify.com/s/files/1/0114/3196/8868/files/Bernina_Old_Style_Feet_image_240x240.jpg?v=1649341066)
NOTE - BERNINA Old Style Feet have a rounded back, and will NOT have a cut-out on the back side.