The Adjustable Ruler Foot with Slit #72S is a versatile foot that is perfect for a variety of quilting and free-motion projects. The slit in the foot allows you to change feet without cutting the thread, which saves time and frustration. The foot is also compatible with 1/4-inch-thick rulers, making it ideal for quilting with rulers. Additionally, the foot can be combined with Couching Inserts for couching, which is a great way to add decorative details to your quilts.