Features:The easy way to open jars， even stubborn onesJust place on jar and it does the hard workA must-have kitchen gadget ideal for those with limited hand mobilityIt simply aligns over the lids then when the button is pressed it removes the lid. Safe enough to use on any jar yet powerful enough to deal with the toughest jarsOpens any lid between 30-100mm (1.2-4 inches)Power Supply: 2 x AA batteries (Not included)Dimensions(L*W*H): Approx.17.5x6x9cm/ 6.89x2.36x3.54''Package Included:1 x One Touch Jar Opener