Brix JarKey Jar Opener, The Original JarPop! - Assorted Colors One easy lift:pops the vacuum so lids spin free Place JarKey on rim of lid, lift:gently until you hear the vacuum pop, Lid is not free to spin JarKey has no sharp edges or points, no moveable parts, and is dishwasher safe Compact design stores easily;measures 5.62 x 2.12 x 1.25 Endorsed by Arthritis Associations around the world; Made in Denmark