The Ultimate Seam Ripper Battery operated seam ripper makes quick work of removing flawed seams. No one likes to rip out seams, but with this fast, efficient seam ripper, life just got easier. Small and lightweight, fits into your hand comfortably - 4" x 1 1/2". On/off switch is on the housing just behind the blade area. Includes: cover for blades and brush. Runs on one AA battery (included)