Left soft edge: Built-in smart magnet ensures the lid stays in place, and the soft edge won't hurt your hands Upgrade: Opens a wide variety of jar lid sizes, from 3.8 to 10.2 cm in diameter - made of stronger and more durable internal materials. No twisting, no pulling, no pain - best kitchen tool forwomen, chefs, the elderly and people with arthritis Energy efficient: This electric jar opener uses very little energy, opens the can very quickly. Easy to use: Put it on the lid. It opens your jars automatically with the press of a button. The lid is held together with a magnet to prevent clutter. Best Quality: Our products are made of good quality materials. Do not worry. We improve your life experience. -