So I've been using these for a few months now, every weekday at work. Prior to buying these, I actually wore holes in the elbows of several sweet button up shirts of mine, exactly where my elbows contact my desk. These have prevented that from happening, and also increase the overall comfort of my work space. If you have anything negative happening around your elbow from repeated exposure to hard objects, you owe it to yourself to give them a fair try. Physically, they're quite firm, so unlike other products that are "gel." This actually makes them very good for resisting the weight of an entire arm, though, so the elbow is an ideal spot for them... I mean, they are called "jelbows."