I know walkers are essential and can be a lifeline for mobility, but sometimes they seem a little shaky and not very stable. You use a walker to not worry about falling, not give you another reason to worry. Nova walkers have a double-button release system so that when you need to stay put, you stay put. Another great feature is that they fold down to only a 4″ diameter which means you can flip one down, put it behind a chair, pop it in the back seat of a car or trunk, and off you go.