Nifty Notions Electric Seam Ripper
Rip out those sewing mistakes in a jiffy! To hold the seam taut, pin one side of the seam to a surface, and hold the other side with your hand. Carefully rip through your stitches with the seam ripper. Works on straight stitch and serged seams. An excellent tool for removing embroidery stitches too! Runs on 1 AA battery, not included.