BEWARE. May be very uncomfortable to use.
The product is well made and goes together easily. Unfortunately, if you have a cast that goes up almost to the knee, all the weight of your body will press against the cast and into your leg below the knee. This makes the Knee Walker extremely uncomfortable after a few minutes. Try this:1. Put a folding chair with a padded seat in front of you.2. Bend your "bad" leg so the cast is horizontal.3. Place all your weight on the cast with the chair underneath.If this doesn't cause any discomfort, the knee walker will probably work OK for you. Thick carpet, going backwards and tight spaces (constantly lifting it to change directions) are annoying, but if it weren't for the extreme pressure just below my knee, I could live with it.