1 This scooter is super light and foldable frame is convenient to ... oxidation frame ,Aluminum oxidation cross braces,5" PU rear wheel ,4'' front castor with solid PU tires,Sponge armrest ... coated frame,Black powder coated cross braces,24" spoke wheel with pneumatic tires,8"front caster with solid PU tires ... best service for you. Thank you! Light aluminum manual balance scooter from manufacturer