SILVERLINE 12MM WIDE. HIGH QUALITY STEEL BLADE WITH A PHOSHATE COATING FOR RUST PROTECTION. ENAMEL COATED.PRINTED & LACQUERED TO PROTECT FIGURES & GRADUATIONS.CONFORMS TO EEC CLASS 2 ACCURACY (STEEL TAPES).METRIC/IMPERIAL GRADUATIONS METAL END HOOKS AND CLAW.STEEL CASE WITH VINYL COATING