Kobalt Universal 8 Piece Spline Metric Standard Combination Wrench Set Home Security Fencing ) 10 Material High Impact Polystyrene ) 10 Material High Impact Polystyrene (HIPS) Color Finish Black Features Shelves low maintenance durable finish This Universal set contains 8 metric combination wrenches including 8 allowing you to work in tight spaces where a socket can't fit Natural surface grind finish with a matte black finish that allows you to easily identify your Universal tools in your tool box or on your work bench Universal wrenches are constructed of chrome vanadium steel and heat treated for strength and durability Size callouts are hard stamped Meets or exceeds ASME specifications Hassle free lifetime guarantee