A flexible ruler is a measuring tool made from a bendable material, allowing it to conform to various shapes and surfaces. Unlike traditional rigid rulers, flexible rulers can easily wrap around curves, making them useful for tasks that require precise measurements on irregular objects. These rulers often feature both metric and imperial units, providing versatility for different measurement needs. They are commonly used in fields such as sewing, crafting, and woodworking, where accurate measurements are essential. Flexible rulers can also be helpful in educational settings, assisting students in learning about geometry and measurement concepts.