Common frame materials include aluminum, carbon steel, standard steel, and steel alloys.
Most knee scooters list weight capacities in the 300–350 lb range; many specify 300 lb and some models are rated up to 350 lb.
Handlebar/steering column heights commonly range about 32.9" to 45.9", while knee pad height adjustments typically span roughly 15" to 24.8", depending on the model.
Weights commonly range from about 9.5 lb to 28.7 lb. Many models fold for compact storage; some listings show folded dimensions around 22" x 20" x 20".
Assembly varies by model: many require adult assembly, some include the necessary tools, and a few advertise tool-free setup.