A walker is a life-changing medical appliance. It enables an older person to maintain or increase his or her mobility, and may also help a younger person maintain mobility in place of crutches. A walker is made of tubular, lightweight aluminum. It is strong enough to support a person's weight, yet light enough to be maneuverable. What should a person think about when buying a walker?

Since a walker is used to increase mobility, sizing is crucial. A person should make sure he or she buys a walker that is adjustable for height. Most are, but always check.

Years ago, every walker had four legs that ended in rubber stoppers, and that was it. That model is good for some people, but older people who don't have the strength to lift the walker for every step may need the front legs to end in wheels. Most walker models come with this option, but again, checking in advance is a good idea.

A person should also make sure that his or her walker fits according to width. A larger person would probably be uncomfortable with a narrow walker. It might also hinder mobility. Check whether the walker is sized for an adult, a child or a large adult.

Another aspect of buying a walker is accessorizing. Sounds strange, doesn't it? However, most people need some kind of caddy or basket that fits the front of the walker. These baskets are indispensable for convenience. People can place drinking mugs, eyeglasses or a telephone handset in the basket so they can carry items as they walk. The basket functions as an extra pair of hands.

Price is also a consideration, depending on the kind of medical coverage a person has. Medicare may or may not pay for a walker -- it depends on the situation. The same holds true for Medicaid. Insurance may or may not cover a walker. Since it isn't medication, it is usually up to the insurance company.

Someone who needs a walker can either go to a business that sells medical equipment or look for a used one. It isn't unusual for people to sell walkers in the classified section. A new walker, depending on the size and manufacturer, may sell from anywhere between 100 and 200 US dollars (USD). Used walkers sell for much less, but a buyer should always check the size and fit before purchasing.