This foot is designed specifically for ruler work: you will have more visibility with the V-shaped front, while markings on the foot will help sewers find the center point. The 1/4" cup height moves smoothly alongside the quilting ruler without allowing the ruler to slide over or under. With this foot, the needle drops a 1/4" away from the ruler to create the quilting line. Please note that this foot cannot be used with sewing machines on which the presser bar automatically moves up and down when free-motion quilting.

Janome
1600P-QC, HD9, HD9BE, HD9P