These comfortable, effective topical pain patches have 3 powerful pain fighters that work at the site of pain. Whether for your back, shoulders, neck or legs, the Salonpas Pain Relieving Patch can provide hours of relief. With rounded corners and flexible fabric, application is easy and the patches bend with your movements. The patches stay where you need them and are easy to remove. New & Improved they have more medicine, better flexibility and are 20% larger!