Easily Open All the Jar - Our Jar Openers makes opening even the tightest lids effortless, whether they're factory-locked, vacuum sealed, or just stuck, or lids that 't open with other jar openers, whether they're metal or plastic. Under Cabinet Mount - Our jar Openers are mounted under your cabinet, so it's doesn't take up any counter space. It's always there when you need it, It's never lost, never in the way. - Our Jar Openers made of metal, the teeth are hardened, super wear- and never rust. Stronger and more than plastic , simpler and longer life than electronic automatic can opener, no batteries, no worries about plastic arms breaking and electronic failures. Perfect for Seniors - Say goodbye to struggling with jars and hello to easy access with our jar openers. It's designed to be easy to use for weak hands, seniors with arthritis, elderly, chef, people working in the kitchen, limited use of hands.