As seen on TV. Opens stubborn jars at the touch of a button! Effortless, one-touch action. No twisting, no pulling, no pain. Small enough for your kitchen drawer. Opens lid sizes 1.2 to 4 inches. 2 AA Batteries sold separately. The fast, easy way to open jars. Powerful enough for new, factory sealed jars. No bottle or jar to tall. Never jams - lets go when jars are too tight. Made in China.