Weight: 5.980000 Series: Fractional, Metric, Pipe Material: Galvanized Steel / Polyethylene Color: Gray Rail / Black Wheels ESD: Yes Load Capacity per Meter: 507.00 lb (230.00 kg) Load Capacity per Wheel: 20.00 lb (9.00 kg) A (Rail Width): 1.574" (40.00mm) B (Rail Height): 1.259" (32.00mm) C (Overall Height): 1.751" (44.50mm) D (Wheel Width): 0.866" (22.00mm) E (Wheel to Wheel): 1.438" (36.52mm)