Juki Blind Hem Foot Juki Accessories Standard are two interchangeable soles:

Standard are two interchangeable soles: a unique standard straight stitch sole for seaming and a zig-zag sole with open toe for visibility and sewing other utility stitches

Another says

Works with any model that has a multiple step buttonhole mechanism

The Singer Open Toe Walking Foot With Seam Guide is used for even feeding of fabric layers

With the Pfaff Join and Fold Edging Foot

Juki Blind Hem Foot Juki Accessories Standard are two interchangeable soles:Ensures a Perfectly Invisible Hem The Juki Blind Hem Foot has a guide in the center of the foot that the fabric fold follows so just a thread of the hem is caught by the needle giving an undetectable look from the right side. This guide also keeps slack in the thread keeping the hem nice and flat when it is folded open. Includes instructions. Snap on foot. IMPORTANT! Use the "COMPATIBILITY DETAILS" tab above to know which feet fit your Juki model.