Frame Level Overall Height 12 in Overall Length 12 in Overall Width 1 11/16 in Number of V-Grooves 2 Number of Level Vials 1 Number of Plumb Vials 0 Number of Cross Test Vials 1 Vial Graduations .0012 in/ft Total Number of Vials 1 Sensitivity 0.00012 in/ft Mount Type Not Applicable Frame Material Cast Steel Calibration Certificate Not Certified Level Orientation Horizontal Precision Vial Properties Not Applicable Shape Square Accuracy 0.0057 Degrees Color Black Finish Wrinkle