Open tight, stubborn jar lids with the touch of a button! One Touch™ Jar Opener eliminates all the straining, twisting and banging—just position the expandable clamps on jar’s lid, push the button and the jar opens— hands free! Patented technology lets you open jars with 1" to 4" diameter lids. Compact design stores in drawer. Uses 2 AA batteries (not included). 6½"L.