Sinceller high-quality design makes opening stubborn jars convenient, fun and easy - just position Sinceller, adjust, press the Green button, and watch it un-lid tight fitting jars on its own! adjustable, no-slip grip & efficient no-slip clamp adjusts itself and grips around tight-fitting lids. Sinceller and consumes very little energy. Make those batteries last a long, long time! something new with this era of technology, you now can bring something different to your kitchen with sinceller. quality, convenience & safe compact, and portable, Sinceller ergonomic design makes storage a breeze. More So, Sinceller doesn't utilize blades or electricity so it is 100% safe and . hands-free technology-grips, twists and openers. 1. Effortless, just press the button. 2. No twisting, no pulling, no pain. 3. Powerful enough for new, factory-sealed jars. 4. Opens lids from 30 mm to 88 mm. 5. Small enough for your kitchen drawer. 6. No bottle or jar too tall.