Product Features * Simple touch and go action; works on all jars of all sizes * No more wrestling or twisting; opens from the top of the jar lid * Saves time, frustration and aggravation, battery operated (batteries not included) * Small, convenient size, padded edges protect your jars * Adjustable to any jar size Open the toughest jars with just one touch. Jars can be a convenient way and location to store just about anything - from food items to tools, fasteners, knick-knacks and more. They save space and provide a safe and secure place to store whatever you need. At the same time, jars can be next to impossible to open. An exceptionally tight lid, an old and worn out jar top or other factors can result in you struggling, fighting and fussing to open up that car.