This is the intermediate model between Art. 658 and Art. 659. Supplied with 4 wheels (2 rear fixed Ø 125 mm and 2 front rotating with brake Ø 100 mm), side sliding front levers and 2 back levers.Supplied complete with yellow bag containing 3 belts (Art. 590/G). Device certified according to the European harmonized safety standards UNI EN1865-UNI EN1789