The Echo Feet Kit is a set of three acrylic feet with a ring that extends the width of the hopping foot. The feet provide a fixed interval to use when echo quilting around a motif or using rulers. The Echo Feet provide a 3/8-inch interval, a 1/2-inch interval, and a 3/4-inch interval. NOTE: To use HQ Echo Feet, the machine must have been purchased after November 2014 or you first need to install the Handi Feet Conversion Kit.