Let?s Twist Again. An ergonomic crutch in an attractive design, available in six modern colors? green, yellow, orange, silver, black and white/transparent. It can be adjusted in length to fit different users. The armrest of Let?s Twist Again is made of strong plastic and the construction is of aluminum which makes the crutch very light. Handle length 100mm, Handle height 80-100cm, Armrest length 210mm, Armrest angle 15 degrees.