Reed's HWS45 is a Hydrant Wrench. It has a 1-3/4 In. (Pent. ) and 1-1/4 In. (Sq. ) capacity. It weighs 4. 9 lbs. This wrench is a Storz style wrench for hydrants and 4 and 5" Storz fittings. It has a ductile iron head and a steel handle. The head and threaded handle adjust to fit standard sizes of pentagon and square hydrant nuts. A spanner hook is part of the head casting, which loops out to grab lugs on the Storz style fittings, allowing the whole hydrant wrench to turn these fittings for maximum leverage.