Tailor Tack Foot #7 is a versatile tool designed not only for marking seam lines but also for creating elegant embellishments, imitation hemstitch (fagotting), fringe, and 3D effects. When sewing two pieces of fabric, the foot slightly loosens the thread tension, allowing the thread to glide smoothly over the central ridge. Using a zigzag stitch, it forms loose loops that easily slide off the back through the special V-shaped opening in the foot. For marking seam lines or darts, you can gently pull the fabric apart after sewing. Additionally, Tailor Tack Foot #7 can be utilized for various decorative techniques, making it an essential accessory for enhancing your sewing projects.