Hardened steel, clear etched markings and ISO9001 certification - the Sterling range of stainless steel rulers deliver accurate measurements and straight edges. 
- 39mm Width 
 - Hardened Stainless Steel rules
 - Metric/imperial markings and metric only markings available
 - ISO9001 certified manufacturer assures accuracy
 - All markings are etched into the Stainless Steel for durability
 - Metric only rules have conversion chart on back