Upgraded High Quality Material -The analog reverse clocks that go backwards measures 12 inch. Our counter clockwise clock is made of thickened acrylic Totally Quiet -The backwards wall clock sweep mechanism is quiet and non-ticking, ensures a silent and comfortable environment Wall Clock Battery Operated -This backwards wall clock funny for walls needs 1 AA battery(not included) Unique Wall Clocks Unusual -The left handed clock move counter clockwise. The novelty mirror image clock you can read in a mirror runs counterclockwise and reverses, which is pretty amazing Best Gifts & Decoration -Our reverse clock for mirror is a great gift for those that are always late. And this mirror reverse clock can be used as a bedroom reverse wall clock. It can also be used as a wall clock with mirror effect barber. Reverse clocks for walls