A measuring tape is a type of flexible distance measuring device. It is essentially a ruler printed onto a flexible material, such as plastic. This allows it to easily measure organic curves and shapes, such as people. For example, measuring a waist size when making a belt or calf size when crafting leather boots. It is important that the material used does not stretch easily, either new or over time, as the accuracy of it depends on its ability to provide the correct measurements Measuring tapes are usually available in inches (imperial), millimeters (metric), or any variation of scale and units.