A step ladder is a portable ladder that consists of two side rails connected by a series of horizontal steps. It is designed to provide a stable platform for reaching elevated areas safely. Step ladders come in various heights and materials, making them suitable for both indoor and outdoor use. They often feature a locking mechanism to ensure stability while in use. Step ladders are commonly used for tasks such as painting, changing light bulbs, or accessing high shelves. They are an essential tool in many households and workplaces, promoting safety and efficiency when performing tasks at height.