Wheelchairs are very necessary for individuals who cannot do things and get around for themselves. http://www.safehaven-usa.com/wheelchair_accessories.htm :- Individual wheelchair components can vary in size, type and style and include things such as armrests, footrests, footplates, seat and back styles, wheels, casters, tires and the sizes of some of these components. There are things that you needed when you are using a wheelchair. Cushions, crutches, oxygen, cane holders, ramps, bags, cover trays and batteries are some wheelchair accessories that are commonly used these days.