The adjustable sizes of circular openings make the jar opener extremely convenient for opening a wide variety of lid sizes. This 4 in 1 Can Opener is a very useful gadget to have around your home. 4 different sizes of lids, ranging from small bottles to large jam jars. Very nice design. Designed with an ergonomic soft rubber handle for comfort and ease of use. Compact and slim, easily place in your kitchen drawer or hang on hooks for quick access; Made of high quality food grade PP and rubber, the sponge rubber lining is easy to clean. This ingenious kitchen gadget offers a living aid for elders, arthritis sufferers or anyone with low strength, it is the ideal gift for your mom, dad, grandma, grandpa or friends if they struggle with jars.