A wheelchair is a mobility aid device used by people who have difficulty walking or moving around independently. It typically consists of a seat mounted on a wheeled base, with handles or controls for self-propulsion or assistance from a caregiver. Wheelchairs come in various designs and configurations to meet the specific needs of users, including manual wheelchairs, powered wheelchairs, and specialized models for sports or outdoor activities.Manual wheelchairs are propelled by the user or pushed by a caregiver.