There is a "Height" and "Weight" chart with a lot of dimensions, at:
answered 3 months, 1 week ago
Anyone about 5ft. tall up to about 6ft 4in should be able to use this walker with no problems. There is a spacer/extension on all four legs, that needs to come off if you are under 5ft, 3in.. The seat is also height adjustable, so I don't think size/height would be a problem. My wife is the one who uses it, and she is about 5ft. total. She does not have any problem with it, and we left the extensions on the legs.
Not sure but the handles are adjustable. I am 5 feet 4 inches tall.