18", chrome finish, adjustable wrench, longer jaws grip better, avoiding slippage or nut round off, measurement scales front & back are handy for sizing nuts, pipe & tube diameters, greater jaw capacity supports larger nuts & bolts, thinner jaws for greater access in tight spaces, precise jaw design grips tight the first time every time, 4 thread knurl & non-protruding jaws provide greater capacity, minimal head width improves performance in confined spaces, chrome vanadium steel construction.