Adjustable Frame Truck Heavy duty plywood deck platform trolley with 2 tall frame supports supplied as standard. Additional frames as well as tall or short frames are also available. Technical Specifications: Capacity: 500 kg Platform Size (L x W): 1200 x 700 mm Wheels: Solid Rubber Wheels Diameter: ø 200 mm Additional 32 diameter adjustable tube supports are available in these sizes: Small: 300 mm High Medium: 600 mm High Tall: 900 mm High A Rough Terrain version with pneumatic wheels is also available.