The new Clover Jumbo Wonder clips have great holding capacity for many craft projects. The clip measures 2-1/4in long and is marked with 3/16in, 1-4in, 3/8in, 1-3/8in, 1/2in, 3/4in and 1in seam allowances. The Clip opens wide for multiple layers, won't damage or distort fabric. They are a great alternative to pins, especially when working with vinyl's, piles, and heavy weight fabrics. The bottom plate of the clip features seam allowance markings and slides easily on the sewing machine deck. The rounded nose allows the foot of your machine to ride along the front for neat stitching. These are a wonderful time saver. They make sewing and crafting more enjoyable while contributing to a finer finished product. You will wonder what you did without these when you use them on your next project.