Calibration Weight Nominal Mass 500 lb Calibration Weight Class 6 Calibration Certificate No Certificate Calibration Weight Style Grip Handle Calibration Weight Material Cast Iron Measurement Type Avoirdupois Number of Pieces 1 Finish Painted Calibration Weight Compliance Agency ASTM Overall Height 15.75 in Overall Length 11.5 in Overall Width 12 in Calibration Tolerance 23 g