When I see a crowd around a booth at a trade show, I have to stop and see what all the fuss is about. I listened, I learned, I ordered these strange looking water bottles that have a built in fruit or herb infuser. Fill the center with fruit or herbs and fill the container with water for a refreshing healthy drink. It is BPA free! Dishwasher safe! Great for gym workouts,the outdoors,travel,school or office.