At times, people with disabilities find it difficult to access some of public amenities. Some of highly affected are those that move in wheel chairs. They find it quite difficult to enter buildings that have stairs, since most of wheelchairs cannot go up the stairs. However, most of governments and some nongovernmental organizations are working hard to ensure that most items being designed currently are accessible to people with disabilities. This has led to the manufacture of Wheelchair accessible viewers so that they are also able to enjoy their services.