As Seen on TV — With RoboTwist™ struggling to open tight fitting jar lids becomes a thing of the past. Simply put RoboTwist™ on any size jar and push the button - then watch as the vice-grip automatically adjusts and removes even the toughest lids in seconds! Compact design easily fits into drawers or kitchen cabinets. Requires 2AA Batteries (not included).10 1/8" x 9 1/5" x 9½".