The other day I saw an elderly lady hobbling her way into a store with her walker, and of course I immediately noticed the bright neon green tennis balls that she had affixed to the non-rolling ends of her walker. It occurred to me that I used to see this all the time. In fact, I remember the very first time that I saw it when I was a child visiting my great-grandparents in a nursing home. Even then I immediately knew their purpose- to help the walker glide along over various surfaces and to prevent marring of floors. But why, 30 years later, are tennis balls still the preferred solution? Can’t someone come up with something better?
