A wheelchair is a mobility device designed to help individuals who have difficulty walking or moving around. It typically consists of a seat, wheels, and footrests, allowing users to sit comfortably while being pushed or propelling themselves. Wheelchairs can be manual, where a person uses their arms to move the wheels, or electric, which are powered by a battery and controlled with a joystick. These devices come in various styles and sizes to accommodate different needs. Some wheelchairs are designed for indoor use, while others are built for outdoor terrain. They provide independence and improve the quality of life for many people, including those with disabilities or injuries.