One of the devices to help physically challenged people is called the Wheelchairs. These devices are propelled either manually or by different kinds of automated systems. Wheel chairs are used by people for who face difficulties in locomotion. These people find walking difficult because of mental or physical illness, injury, or disability. People with both sitting and walking disabilities often can be seen to use wheel chairs. The earliest record of the wheelchair in England dates from the 1670s. At the same time this technology dates back to the renaissance in Continental Europe. The standard wheelchair includes a seat, two small front wheels and two large main wheels.