Instead of struggling with vinyl, piles, and laminated fabrics, you can neatly clip layers together with the wide mouth opening clips. Wonder Clips’ primary function is keeping quilt binding stationary as you stitch it down, making the binding flat and straight and holding mitered corners in their place for the perfect finish. They also work wonders for maintaining a firm grip on interfacing, batting, and other thick fabrics, so your project doesn’t become misaligned and you get clean lines every time. As the back of each clip is flat, it feeds through a sewing machine smoothly and won’t snag on the edges.