This is a pill case (medicine case) that allows you to manage a week's worth of medicine and supplements by day of the week. It helps prevent you from forgetting to take your medicine. Internal dimensions: 2.5cm (length), 2cm (width) External dimensions: 14.8cm (width) x 3cm (length) x 2.4cm (height) It comes in a set of 3, so you can separate them for morning, noon, and night use.