Chrome Vanadium steel head, carbon steel construction handle. 

Chrome-plated, mirror polished resists corrosion. 

180 degree flexible head provides better access to hard-to-reach places. 

Sizes stamped on the wrench beam for quick identification. 

Sizes: 9mm-11mm, 10mm-12mm, 13mm-14mm, 15mm-17mm, 16mm-18mm, 19mm-21mm