A step ladder is a portable ladder that consists of a frame with rungs or steps. It is designed to provide a stable platform for reaching higher areas, making tasks like painting, cleaning, or changing light bulbs easier and safer. Step ladders come in various heights and materials, such as aluminum or fiberglass, to suit different needs. Most step ladders have a hinged design, allowing them to fold for easy storage and transport. They often feature a safety lock to prevent accidental collapse while in use. Some models also include a top platform or tray for holding tools, enhancing convenience during tasks.