Suitable aid for the elderly, children, or those suffering with arthritis, carpal tunnel and fibromyalgia. Easy installation in your kitchen or cooking space. To install simply peel adhesive sticker and apply to the back of the jar opener and install to a desired space. Ideal for homes, break rooms, and offices. Placement under counters or along kitchen shelves. Two optional screw holes available for added stability. The leverage allowed by the powerful teeth easily removes even the toughest lid. Its that easy to save your hands from the pain and frustration of tight lids and tops.