Calibration Weight, Nominal Mass 1 lb, Calibration Weight Class 7, Calibration Certificate Statement of Accuracy, Calibration Weight Style Slotted, Calibration Weight Material Cast Iron, Measurement Type Avoirdupois, Includes Not Applicable, Number of Pieces 1, Finish Painted, Calibration Weight Compliance Agency ASTM, Overall Height 0.45 in, Overall Length 5 in, Calibration Tolerance 270 mg