One-step buttonhole foot, you just fit your button in the gauge at the back of the foot, lower the presser foot, and pull down the buttonhole lever on your sewing machine.

It is important to raise the lever after every buttonhole and pull it down when the presser foot is down because if you don’t you may not get good buttonholes – one side will be shorter than the other.

For sewing buttonholes on tight areas such as cuffs and other areas where more freedom of movement is required than available with a sliding-type buttonhole foot.