... Steel Construction with Black Coated Finish3 Adjustable Height PositionsThe Front Wheel Guides are Adjustable to Keep the Front Wheel and ... to Keep Tools such as a Screwdriver or Pliers4 Adjustable Legs for Leveling on Uneven SurfacesComplete Assembly Takes ... Made of Steel, Aluminum or Carbon FiberSpecification:3 Adjustable Height Positions: 25", 28", 31"Adjustable Arms Positions: 15 ", 16" or 17 ...