The Worlds easiest jar opener, pops the vacuum seal of jar lids so they spin open freely. Finally, open those stubborn jars in a single action. No more twisting or gripping and straining hands! Jar Key (formerly Jar Pop) is endorsed by arthritis associations worldwide. Simply place Jar Key jar opener against the lid of the jar and by gently lifting the handle, release the vacuum seal so the lid can easily be removed. Jar Key is specially designed for simple and easy use by anyone, even kids or people with arthritis and carpal tunnel.