ITEM NAME:Steel Dental Metric Gauge Feeler Blade Ruler Precision Measuring Tool 0.1-0.5mm 1 Set Steel Dental Metric Feeler Gauge Thickness Blade Instrument Tool 0.10-0.50mm SPECIFICATIONS.(Item included: 1 x Gauge Ruler. Material: Steel. 6) Can be sterilized in a steam autoclave, dry heat autoclave, or in chemical cold sterile. The sale of this item may be subject to regulation by the U.S. Food and Drug Administration and state and local regulatory agencies.