If you use sheets in quilting and want to open the long cuff seams and hems, inserting the ball end of the seam ripper under the stitching, as shown in the u-tube, is the fast and easy way to complete this task. Remember to move evenly and steadily so as not to accidentally rip the fabric. I have tried several different rippers and agree that the smaller ones are easier to control than the larger-maybe just because you are closer to the spot you are ripping. Remember to pass this tip along to your fellow quilters-they'll think you're the smartest person on the planet.